FREE ISA 2015 SHOW PASS

Thanks to everyone who stopped by the King Plastic Booth Apr 9-11, 2015!

Click for Your FREE ISA 2015 Show Pass! – (This promotion expired)

Click to get your FREE ISA 2015 Pass

Visit us at Booth #1009

Visit us at Booth #1009. The ISA Show is April 9-11, 2015 at Mandalay Bay Convention Center, Las Vegas, NV.

KING PLASTIC CORPORATION NAMES JOHN HAY AS CONTROLLER

King Plastic Corporation Names John Hay as Controller

North Port, FL – February 9, 2015 – King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes, today announces the appointment of John Hay as Controller.

“John is a great fit for King Plastic,” said Jeff King, President of King Plastic Corporation. “His extensive background in all areas of Financial Management includes working primarily in manufacturing industries.”

Hay received his Bachelor’s degree in Accounting from Bowling Green State University in Bowling Green, Ohio and is a Certified Public Accountant in Ohio. Hay’s experience includes controller positions in various types of manufacturing environments including 20 years at a metal finishing/forming company that serviced the automotive and appliance industries, as well as an automotive after-market exhaust products manufacturer and a sport clothing manufacturer.”

About King Plastic Corporation
Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes – including several products pioneered by the company. Its polymers are sold worldwide through a network of plastics distributors and markets in marine, architectural, healthcare, signage, industrial, food service and many other markets. The company headquarters is a 150,000 square-foot manufacturing facility in North Port, FL. For more information about King Plastic, visit www.kingplastic.com.

KING PLASTIC CORPORATION NAMES SUSAN MILLER AS SALES ADMINISTRATIVE ASSISTANT

King Plastic Corporation Names Susan Miller as Sales Administrative Assistant

North Port, FL – February 2, 2015 – King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes, today announces the appointment of Susan Miller as sales administrative assistant.

“Susan’s extensive administrative experience makes her a great asset to our team,” says Michael Fabbri, National Sales Manager. “We look forward to having her on board during this very exciting time at King Plastic.”

Miller has more than 30 years of experience in administration. She received her M.A.S. with an emphasis in strategic planning from Fairleigh Dickinson University in New Jersey.  Miller’s experience includes administrative support, project management and database management.

About King Plastic Corporation
Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes to include several products pioneered by the company. Its polymers are sold worldwide through a network of plastics distributors and markets in marine, architectural, healthcare, signage, industrial, food service and many other markets. The company headquartered in North Port, FL, maintains a state-of-the-art 150,000 square foot manufacturing facility. For more information about King Plastic, visit www.kingplastic.com.

 

5 WAYS TO ENHANCE YOUR HEALTHCARE FACILITY TODAY

 

  1. Build handsome polymer cabinets and case goods with King StarBoard® ST
  2. Upgrade to King MicroShield® with an exclusive antimicrobial additive, the latest technology for protecting the product surface
  3. Integrate waterproof and graffiti resistant King Plasti-Bal® restroom and shower partitions
  4. Design effective neutron shielding with borated King Plasti-Shield®
  5. Engrave multi-color signage with King ColorCore®

Architects an5 Ways to Enhance Your Healthcare Facility Todayd designers specify King products because they fill specific needs, look beautiful and last a lifetime without rotting, delaminating or leaching into the environment. King polymer sheets work like wood and your fabricator can make our materials into nearly any application you can imagine.

Find a Distributor

KING PLASTIC DELIVERS INNOVATIVE RANGE OF POLYMER TECHNOLOGIES

FOR IMMEDIATE RELEASE
CONTACT: Rich Odato
941.954.0345 x104
rich@odatomarketing.com

KING PLASTIC DELIVERS INNOVATIVE RANGE OF POLYMER TECHNOLOGIES

NORTH PORT, Fla., September 17, 2014— King Plastic will present a wide range of marine-grade polymer resistant to saltwater, chemicals, sunshine and corrosion at the IBEX Expo 2014 in Tampa, Florida. These polymer products include the King StarBoard® Family product line.

King StarBoard® is the original marine-grade polymer building sheet. It is environmentally stabilized to withstand the harshest marine conditions. It will not warp, rot, or delaminate when exposed to humidity or water.

King StarBoard AS® is a sure-grip, marine-grade, decking material designed specifically for high-traffic areas. This unique product features a special high-friction surface polymer in a diamond or dot pattern to prevent slipping.
King StarBoard XL® is a 100% virgin polymer, marine-grade cellular material with an excellent surface finish. King StarBoard XL sheets are up to 30% lighter in weight than King StarBoard and are made with the same textured surface and colors for a perfect match.

King StarLite XL® is an economical cellular (closed cell) utility sheet made from select high-grade King StarBoard recycled high-density polyethylene. King StarLite XL is up to 35% lighter in weight than King StarBoard and it offers the same quality textured surface on both sides.

“Our original King StarBoard has proven itself for more than two decades in the most severe marine environments on the finest boats and yachts,” said Jeff King, president of King Plastic Corporation. “We are pleased to celebrate over 25 years of success with this product, as well the success of the King StarBoard family of products as we continue to create new business opportunities for boat and accessory manufacturers everywhere.”

Using King Plastic’s proprietary K-Stran® process, the company is able to achieve industry leading quality tolerances in dimension, density, finish and flatness. Finished products made from King StarBoard sheets are easy to clean, resistant to mild cleaning products, impervious to water, and never need refinishing.

To learn more about King Plastic Corporation, visit www.kingplastic.com.

###

About King Plastic Corporation
Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes—including several products pioneered by the company. Its polymers are sold worldwide through a network of top plastics distributors and used in products for marine, architectural, healthcare, mining, corrosion resistance, signage, food service, general industrial, and many other applications and markets. The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida. Visit www.kingplastic.com for more information.

VISIT US AT IBEX TAMPA 2014

Visit King Plastic Corporation at Booth #711 at IBEX Tampa 2014. Where Better Boats Begin. New City. New Technology. A Whole New Experience.

IBEX Tampa 2014

For three days, the entire marine industry comes together at IBEX to see exciting new products and learn the latest trends impacting our industry, and we want to see you there!  We invite you and your entire company to experience the new innovation, technology, and the non-stop action at IBEX Tampa 2014.

KING PLASTIC NAMES KNELLER MARKETING COORDINATOR

FOR IMMEDIATE RELEASE
CONTACT: Rich Odato
941.954.0345 x104
rich@odatomarketing.com

KING PLASTIC NAMES KNELLER MARKETING COORDINATOR

NORTH PORT, Fla., September 2, 2014—King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes, today announced the appointment of Carolyn Kneller as marketing coordinator.

Kneller received her B.S. in Marketing at Florida Gulf Coast University with a concentration in advertising. Her experience includes digital media, graphic and web design, promotions and 10 years as the promotions director with a radio station.

“Carolyn’s digital media and design experience makes her a great asset to our team,” says Veronica Rosas, Marketing Manager. “We are excited to have her on board during this very exciting time for King Plastic.”

To learn more about King Plastic Corporation, visit www.kingplastic.com.

###

About King Plastic Corporation
Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes—including several products pioneered by the company. Its polymers are sold worldwide through a network of top plastics distributors and used in products for marine, architectural, healthcare, mining, corrosion resistance, signage, food service, general industrial, and many other applications and markets. The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida. Visit www.kingplastic.com for more information.

KING PLASTIC LAUNCHES NEW WEBSITE, DISTRIBUTOR LOCATOR

FOR IMMEDIATE RELEASE
CONTACT: Rich Odato
941.954.0345 x104
rich@odatomarketing.com

KING PLASTIC LAUNCHES NEW WEBSITE, DISTRIBUTOR LOCATOR

NORTH PORT, Fla., July 7, 2014—King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes, has launched an all-new website at www.kingplastic.com. The site includes an all-new distributor locator tool, expanded product information, streamlined navigation and responsive design for an enhanced tablet and smartphone user experience.

King Plastic’s marketing team, Veronica Rosas and Keith Watterson, and its advertising agency, Odato Marketing Group, collaborated to develop and launch the new site.

“Our site has a lot of great content and attracts significant traffic from all over the world,” said Jeff King, president of King Plastic. “The new site will make it even faster and easier for our online visitors to access the information they need.

To learn more about King Plastic Corporation, visit www.kingplastic.com.

###

About King Plastic Corporation

Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes—including several products pioneered by the company. Its polymers are sold worldwide through a network of top plastics distributors and used in products for marine, architectural, healthcare, mining, corrosion resistance, signage, food service, general industrial, and many other applications and markets. The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida. Visit www.kingplastic.com for more information.

KING PLASTIC NAMES ROSAS MARKETING MANAGER

FOR IMMEDIATE RELEASE
CONTACT: Rich Odato
941.954.0345 x104
rich@odatomarketing.com

KING PLASTIC NAMES ROSAS MARKETING MANAGER

NORTH PORT, Fla., June 30, 2014—King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes, today announced the appointment of Veronica Rosas as marketing manager.

Rosas, who brings more than 14 years of marketing experience, will be responsible for developing overall marketing strategy as well as individual marketing and business-development initiatives.

“Veronica’s extensive background in marketing and strategic thinking makes her a welcome asset and strong addition to our team,” said Jeff King, president of King Plastic. “We look forward to her leadership as we continue to introduce new products and expand our markets.”

Rosas earned her B.S. in business administration with a major in marketing from the University of South Florida.

To learn more about King Plastic Corporation, visit www.kingplastic.com.

###

About King Plastic Corporation

Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes—including several products pioneered by the company. Its polymers are sold worldwide through a network of top plastics distributors and used in products for marine, architectural, healthcare, mining, corrosion resistance, signage, food service, general industrial, and many other applications and markets. The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida. Visit www.kingplastic.com for more information.

 

KING PLASTIC PROMOTES FABBRI TO NATIONAL SALES MANAGER

FOR IMMEDIATE RELEASE
CONTACT: Rich Odato
941.954.0345 x104
rich@odatomarketing.com

KING PLASTIC PROMOTES FABBRI TO NATIONAL SALES MANAGER

NORTH PORT, Fla., June 23, 2014—King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes, today announced the promotion of Michael Fabbri to national sales manager.

Fabbri, who has managed King Plastic’s marine and commercial division for seven years, is relocating from Rockford, Mich. to the company’s headquarters in North Port, Fla.

“We have enjoyed a great working relationship with Michael and we look forward to welcoming him to Florida,” said Jeff King, president of King Plastic. “His extensive knowledge of our products and our customers’ products has helped him become a trusted resource for many of our customers.”

Fabbri has more than 30 years of experience in the plastics industry. He managed regional sales for a polycarbonate and PETG manufacturer for 12 years before taking on a leadership role with a national marine polymers distributor for another 12.

To learn more about King Plastic Corporation, visit www.kingplastic.com.

###

About King Plastic Corporation

Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes—including several products pioneered by the company. Its polymers are sold worldwide through a network of top plastics distributors and used in products for marine, architectural, healthcare, mining, corrosion resistance, signage, food service, general industrial, and many other applications and markets. The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida. Visit www.kingplastic.com for more information.

KING PLASTIC NAMES PLOTT SOUTHEAST ACCOUNT MANAGER

FOR IMMEDIATE RELEASE
CONTACT: Rich Odato
941.954.0345 x104
rich@odatomarketing.com

KING PLASTIC NAMES PLOTT SOUTHEAST ACCOUNT MANAGER

NORTH PORT, Fla., June 16, 2014—King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes, today announced the appointment of Scott Plott as Southeast account manager.

Plott brings more than 23 years of experience in plastics sales, marketing and product development.

“Scott is a solutions-oriented seller,” said Jeff King, president of King Plastic. “His extensive background and technical knowledge in plastic distribution, fabrication and processing will make him a great resource for our customers in the region.”

Based in Kennesaw, Ga., Plott’s primary focus will be on growing the company’s market share in the industrial, architectural and signage markets.

To learn more about King Plastic Corporation, visit www.kingplastic.com.

###

About King Plastic Corporation

Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes—including several products pioneered by the company. Its polymers are sold worldwide through a network of top plastics distributors and used in products for marine, architectural, healthcare, mining, corrosion resistance, signage, food service, general industrial, and many other applications and markets. The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida. Visit www.kingplastic.com for more information.

 

THERMOFORMING WITH A BENDING BAR AND THERMOFORMING A LARGER RADIUS

Thermoforming with a Bending Bar

1.  The part to be bent needs to have a 90 degree groove routed in the material which will form the finished bend location. The groove should be cut to a depth that leaves about 0.100”-.050” of material (more thickness for a rounder corner, less thickness for a sharper corner).

2.  Preheat the bending bar to a temperature of about 300 to 350 degrees F. when bending high density polyethylene. Adjust the temperature for other materials.

3.  Place the part on the bending bar and apply a weight of about 10 to 15 pounds per foot of the part being bent. For example, if one is bending a 24” part, a weight of 20 to 30 pounds needs to be applied to the part uniformly to hold the part down to the bending bar. This weight may need to be adjusted if the temperature of the bar is warmer or cooler, but the weight is needed to force the plastic edges to be in complete contact with the bar.

4.  The part needs to be in contact with the bar for 60 to 120 seconds depending on the temperature of the bar. The best way to tell if the part is ready to be removed from the bar is to look for a bead forming under the part where the plastic meets the bar. When a small bead forms the full length of the part in this location on both sides, then it is ready to be removed.

5.  Pull the part off the bar by grabbing one end and pulling up, peeling the part off the bar while holding the bar down securely. The plastic will tend to stick to the bar, a small amount of molten plastic left on the bending bar is common.

6.  After the part is removed from the bar, immediately bend the part by placing it in a fixture or jig which will hold the part in its final position. It is important to hold the part in the jig for a minute or two to allow the molten plastic to cool. Allow enough time to complete the cooling. Sometimes the part will relax slightly after removing it from the jig and it may require to over bend the part to get the final bend correct. Some experimentation may be necessary.

7. Forming a radius can also be done by using a heat gun, using a back and forth motion across the length of the sheet both top and bottom until the material is soft enough to start bending. Keep the gun at a distance of at least 8” to 12”, do not get the heat to close to the material as blistering may occur. And be aware the thicker the material the longer it will take to form a desired radius, scoring of the thicker material may be necessary.  Once the material has been bent to the desired angle clamp into place for at least 24 hours.

KING PLASTIC CORPORATION RECENTLY ACHIEVED OSHA SHARP RECOGNITION AS A RESULT OF ITS COMMITMENT TO CONTINUOUS IMPROVEMENT IN WORKPLACE SAFETY AND HEALTH

Group_image 4x3

With more than 100 employees, King Plastic Corporation, a company which manufactures polymer sheets, slabs and massive shapes, has recently achieved OSHA SHARP recognition as a result of its commitment to continuous improvement in workplace safety and health.

Company Description
Founded in 1968, King Plastic Corporation is a leading manufacturer of quality polymer sheets, slabs and massive shapes—including several products pioneered by the company. Its polymers are sold worldwide through a network of top plastics distributors and its products are used in products for marine, architectural, healthcare, mining, corrosion resistance, signage, food service, general industrial, and many other applications and markets.

The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida.  King’s facility operates 24 hours-per-day, 7 days-per-week.

A History of Focus on Safety: On-Site Consultation Visit and SHARP Recognition

  • “Safety and health is a part of our culture. It comes from attitude and actions. Our employees begin safety training on their first day. The process never stops,” said Dale Givens, King’s Director of Operations.
  • David Ashman, On-site Consultant for OSHA, said: “King Plastic Corporation has a top quality safety and health program. They have met all OSHA requirements, have maintained a low injury rate, are committed to safety throughout all levels of the company, have written safety programs, and have passed an in-depth safety and health audit. This makes King Plastic Corporation one of few to reach this goal.”
  • “This is an outstanding accomplishment for King Plastic Corporation,” stated President, Jeff King, “In completing the SHARP designation process, King Plastic Corporation has proven its dedication to the health and safety of all our employees and to being a leader in our industry for best safety practices.” “I am so proud of our entire staff for their hard work and dedication they exhibited in allowing us to reach this significant goal!”

The SHARP award recognizes companies for a commitment to safety and health of their employees. Companies that qualify for the award must show they have developed and maintained exemplary safety programs for workers. To qualify for the program, injury and illness rates for the company must be below the national average for the industry, and the company must succeed in passing safety and health assessments conducted by USF’s Safety and Health Consultation Program over the course of several years. In Florida there are over 410,330+ small to medium size businesses, of those businesses only .0136% (56) have been SHARP accredited by OSHA

SELECTING THE PROPER POLYMER MATERIAL

Failures arising from hasty material selection are not uncommon in plastics or any other industry. In an application that demands high-impact resistance, a high-impact material must be specified. If the material is to be used outdoors for a long period, an Ultraviolet resistant (UV) material must be specified. For proper material selection, careful planning, a thorough understanding of plastic materials, and reasonable prototype testing are required. Plastics are viscoelastic materials. Viscoelasticity is defined as the tendency of plastics to respond to stress as if they were are combination of elastic solids and viscous fluids. This property possessed by all plastics to some degree, dictates that while plastics have solid-like characteristics such as elasticity, strength, and form stability, they also have liquid-like characteristics such as flow depending on time, temperature, rate, and amount of loading. This also means that unlike metals, ceramics and other traditional materials, plastics do not exhibit a linear stress -strain relationship. Designers accustomed to working with metals and other materials often make the mistake of selecting and specifying incorrect plastic materials. It is this non-linear relationship for plastics that makes an understanding of creep, stress relaxation, and fatigue properties extremely important.

Typically, for most designers the material selection process begins by reviewing the plastic material data sheets generally provided by the material suppliers. A misinterpretation of the data sheets is one of the most common reasons for selecting and specifying the wrong material, for a given application. First it is important to understand the purpose of a data sheet. Data sheets are useful only for comparing property values of different plastic materials such as the tensile strength of nylon versus polycarbonate or the impact strength of polystyrene versus ABS. Data sheets should be used for initial screenings of various materials. For example, if a designer is looking for a material that is strong and tough, he may start out by selecting materials whose reported values are higher than 7,000 psi tensile strength and impact strength values of better than 1.0 ft-lb/in and eliminating materials such as general purpose polystyrene, polypropylene, and polyethylene. Data sheets are never meant to be used for engineering design and final or ultimate material selections. First, the reported data is generally derived from the short term tests. Short term tests, as the name suggests, are the tests conducted without consideration of time, and the values derived are instantaneous. Tensile test, izod impact test, and Heat Distortion Temperature, are the examples of such short term tests. Data reported on data sheets are also derived from single point measurements. These tests do not take into account the effect of time, temperature, environment, and chemicals, etc. A single number representing one point on a stress-strain curve cannot begin to convey plastics’ behavior over a range of conditions. The standardized tests used to measure data sheet properties contain data measured in a laboratory under ideal conditions (as specified by ASTM or ISO standards) on standardized test specimens that bear little resemblance to the geometry of real-world parts. These tests likewise take place at temperatures, stress and strain rates that rarely corresponds to the real-world conditions.

The proper use of multi-point data for selecting the most appropriate plastic materials for the applications cannot be over emphasized. This point is well illustrated in a classic example of misinterpretation of published test data and the true meaning and usefulness of Heat Distortion Temperature (HDT) values. The Heat Distortion Temperature test is a short-term test conducted using standard test bars and laboratory conditions. The temperature values derived from this test for a particular plastic material is simply an indication of the temperature at which the test bar shall deform .010 in. under a specified load. The reported values are further distorted by factors such as residual stresses in the test bars, amount of load, and specimen thickness. This reported value is of limited practical importance and should not be used to select materials for applications requiring continuous exposure at elevated temperatures. Continuous use temperature data such as UL temperature index is a better indication of how plastic materials will perform for extended period at elevated temperatures.

If a designer were to select the material solely based on published heat deflection temperature data without understanding the true meaning of the test, test limitations and how the values are derived, the result could be disastrous.

Material Selection using Multi-Point data

As discussed, material selection difficulties stem from limited availability of multi-point data from the material suppliers. Data sheets with single-point measurement data are readily available. However, with a little effort, the designers can find multi-point data from the sources such as CAMPUS (2) and IDES (3) and from all leading material suppliers. Multi-point data is presented in the form of chart and graphs of shear modulus versus temperature, isochronous stress-strain curves, and creep data at a minimum of three different temperatures and four stress levels. While designing a product to withstand multiple impact loads, the designer must take into consideration the data generated from instrumented impact tests which can provide valuable information such as ductile to brittle transition and behavior of the specimen during the entire impact event. Modulus values are also often misinterpreted. The flexural modulus values which are derived from single-point measurement are frequently accepted as the indication of the stiffness of the material over a long period. Flexural modulus tests are conducted at a very low strain and generally represent only the linear portion of the stress-strain curve. The reported values do not correspond well with the actual use conditions and they tend to over predict the stiffness of the actual part. Plastic parts often fail due to the lack of consideration of creep values in material selection process. Plastics can creep or deform under a very small load at a very low strain, even at room temperature. Creep or apparent modulus data for the plastic materials over a long period at several temperatures should be evaluated.

 Material Selection Process

The material selection should not be solely based on cost. A systematic approach to material selection process is necessary in order to select the best material for any application. The proper material selection technique involves carefully defining the application requirement in terms of mechanical, thermal, environmental, electrical and chemical properties. In many instances, it makes sense to design a thinner wall part taking advantage of the stiffness-to-weight ratio offered by higher-priced, fast cycling engineering materials. Many companies including material suppliers have developed software to assist in material selection simply by selecting application requirement in the order of importance. Material selection process starts with carefully defining the requirements and narrowing down the choices by the process of elimination. Designer must identify application requirements including mechanical, thermal, environmental and chemical. All special needs such as outdoor UV exposure, light transmission, fatigue, creep, stress relaxation, and regulatory requirements must be considered. Processing techniques and assembly methods play a key role in selecting appropriate material and should be given consideration. Many plastics materials are susceptible to chemical attack and therefore behavior of plastics material in chemical environment is one of the most important considerations in selecting material. No single property defines material’s ability to perform in a given chemical environment and factors such as external or molded-in stresses, length of exposure, temperature, chemical concentration etc. should be carefully scrutinized.
Some of the common pitfalls in material selection process are relying on published material property data, misinterpretation of data sheets and blindly accepting material supplier’s recommendations. Material property data sheets should only be used for screening various types and grades of materials and not for ultimate selection or engineering design. As discussed earlier, the reported data is generally derived from short term tests and single point measurements under laboratory condition using standard test bars. The published values are generally higher and do not correlate well with actual use conditions. Such data does not take into account the effect of time, temperature, environment and chemicals.

Key considerations are:

Mechanical Properties

• Tensile strength and Modulus
• Flexural strength and Modulus
• Impact strength
• Compressive strength
• Fatigue endurance
• Creep
• Stress-relaxation

Both short and long term property date must be evaluated; Short term data for quick comparison and screening of the candidates and long term data for final material selection. Creep and stress relaxation data which represents deformation under load over a long period needs to be scrutinized over the usable range of temperatures. Isochronous stress-strain curves are very useful for comparing different materials on equal time basis. Multi-point impact data obtained from instrumented impact test which provide more meaningful information such as energy at a given strain or total energy at break must be taken into account. Plastic parts often fail due to the lack of consideration of sudden loss of impact in a very cold environment. Multi-point low temperature impact data, although generally not found on data sheets, is available from all major material suppliers.

 Thermal Properties

As discussed earlier in the chapter short term values such as heat distortion temperature, Vicat softening point should only be used for initial screening. Meaningful values derived from continuous use temperature and co-efficient of thermal expansion test are more helpful for final material selection.

Expansion/Contraction

Plastic materials tend to expand and contract anywhere from seven to ten times more than conventional materials like metals, wood and ceramics. Designers must be well aware of this and special consideration must be given if dissimilar materials are to be assembled. The thermal expansion differences can develop internal stresses from push-pull effect along with internal stresses and cause the parts to fail prematurely. The restraining of the tendency of a piping system to expand/contract can result in significant stress reactions in pipe and fittings, or between the piping and its supporting structure. The allowing of a moderate change in length of an installed piping system as a consequence of a temperature change is generally beneficial, regardless of the piping material, in that it tends to reduce and redistribute the stresses that are generated should the tendency for a dimensional change be fully restrained. Thus, allowing controlled expansion/contraction to take place in one part of a piping system is an accepted means to prevent added stresses to rise to levels in other parts of the system that could compromise the performance of, or cause damage to the structural integrity of a piping component, or to the structure which supports the piping.

Exposure to Chemicals

One of the most important considerations in selecting the right material is it’s resistance to various chemicals. As discussed earlier, the resistance of plastics to various chemicals is dependent on time of contact with chemicals, temperature, molded-in or external stress, and concentration of the chemical. Part design and processing practices play a major role in material’s ability to withstand chemical attack. For example, stress concentration factor increases significantly for the parts designed with radius to wall thickness ratio of less that 0.4. As a rule, crystalline polymers are more resistant to chemicals when compared to amorphous polymers (and therefore if the application requires the parts to be constantly exposed to chemicals, crystalline materials should be given serious consideration.

Chemical exposure to plastic parts may result in physical degradation such as stress cracking, softening, swelling, discoloration, and chemical attack in terms of reaction of chemicals with polymers and loss of properties

Environmental Considerations

Plastic materials are sensitive to environmental conditions. Environmental considerations include exposure to UV, IR, X-ray, high humidity, weather extremes, pollution from industrial chemicals, micro-organisms, bacteria, fungus, and mold. The combined effect of various factors may be much more severe than any single factor and the degradation process in accelerated many times. It is very important to understand that the published test results do not include synergistic effects of various environmental factors, which almost always exist is real life situations. Designers should consider exposing fabricated parts to environmental extremes much similar to the ones encountered during the actual use of the product.

 Regulatory Approval Requirements

Material selection maybe driven by the regulatory requirements put forth by agencies such as Underwriters Laboratories (UL), National Sanitation Foundation (NSF), Food and Drug Administration (FDA) in terms of flammability, pressure ratings, and toxicological considerations.

 Economics

As discussed earlier, material selection should not be driven by cost alone. The most logical approach calls for choosing 3 to 4 top candidates based on requirements and select one of them with economic considerations.

 Other Considerations

Material selection process must also address processing considerations such as type of fabrication process, secondary operations, and component assembly.

* by Vishu Shah, John Wiley & Sons.

UV STABILIZER AND COLOR STABILITY OF KING STARBOARD®, KING STARBOARD® AS, KING STARBOARD® ST, KING COLORCORE® AND KING COLORBOARD® PRODUCTS

The purpose of this memorandum is to address some general questions concerning the life span of our “King StarBoard®, King StarBoard® AS, King StarBoard® ST, King ColorCore® and King ColorBoard®” products. The use of special polymers and additives in these products yield the very best combination of appearance, toughness, rigidity, chemical resistance, environmental stress crack performance and overall longevity to our products.

One of the most common questions asked is, “ How long will “King StarBoard®, King StarBoard® AS, King StarBoard® ST, King ColorCore® or King ColorBoard®” last?” This inquiry probably should be broken down into two questions: (1) How long will the color hold up before fading? and (2) How long will the polymer retain its physical properties? Unfortunately, due to the many variables that affect these outcomes, such as product color, thickness, application, or climate it is impossible to give definite answers. In the following paragraphs, we will explain why and what you should be able to expect from our products.

In order to answer the first question as to how long the color will last before fading, it should first be understood that the color stability of a product is primarily dependent on the type, quality and color of the pigment used (not the UV stabilizers used). The only impact that a UV stabilizer has upon the color stability of a product is that by protecting the base material from degradation, it helps maintain color. That being said, King Plastic Corporation uses the finest color pigments available for applications of long term outdoor exposure. All of our standard colors use pigments that are FDA approved (heavy metal free) as are our UV Stabilizers. Each color we offer will perform with a slight difference from each other in regard to color stability. It is impossible to determine exactly how long any given color will “last”, due to the many variables affecting each application use.

We continually monitor the color stability of our products by testing samples at our plant utilizing a QUV weather accelerator. These accelerated weather tests are quite long in nature and the results are checked at three, six, nine and twelve month intervals.
By performing these tests on an ongoing basis, we can determine how a new color is going to hold up when compared to other established colors.
The second question, as to the length of time the polymer can retain its physical properties is the reason why UV stabilizer additives are used. The sole purpose of the
UV stabilizer is to bond molecularly with the base polymer and prevent the polymers molecular chains from breaking down due to UV exposure. The type and amount of UV stabilizers used and the amount of UV exposure are the main variables that affect polymer life. As with our pigments, King Plastic Corporation uses only the finest UV stabilizers available.

King Plastic Corporation also randomly sends samples of our products to independent labs for UV content analysis. This testing procedure is performed to ensure correct loadings of the UV additives. Without exception, every one of these tests has shown having the correct amount of UV stabilizer present. As stated before, due to the many variables beyond our control, it is impossible to give an exact life expectancy. Based upon the information available from our suppliers and from our many years experience in producing these products, we feel eight to ten years should be a conservative figure.

We do not publish copies of the test results mentioned above, because they contain information about our products that are proprietary. Please be assured that we are using the finest products available to us and that King Plastic Corporation is committed to monitoring our products to ensure that you receive the finest quality material on the market.

UPGRADE TO KING FLAMESHIELD FOR ASTM E-84 CLASS A OR CLASS B FLAME COMPLIANCE AND CAN/ULC-S102 FOR CANADIAN COMPLIANCE

FlameTest

Upgrade to King FlameShield ASTM E-84 Class A or Class B Flame Compliance and CAN/ULC-S102 for Canadian Compliance.

The upgrade is available for select King Plastic Products and is used in a broad range of product applications from marine components to indoor/outdoor cabinetry, structures, bathroom partitions, healthcare facilities and furnishings.

Results
Class A Interior Finish:

Flame Spread Index 0-25, Smoke Developed Index 0-450. Includes any material classified at 25 or less on the flame spread test scale and 450 or less on the smoke developed test scale. Any element thereof when so tested shall not continue to propagate fire.

Class B Interior Finish:
Flame Spread Index 26-75, Smoke Developed Index 0-450. Includes any material classified at 25 but not more than 76 on the flame spread test scale and 450 or less on the smoke developed test scale.

METHODS FOR WELDING HDPE

weld_03

Extrusion welding

Extrusion welding allows the application of bigger welds in a single weld pass. It is the preferred technique for joining material over 6 mm thick. Welding rod is drawn into a miniature hand held plastic extruder, plasticized, and forced out of the extruder against the parts being joined, which are softened with a jet of hot air to allow bonding to take place.

heat-tacking

Hot gas welding

Hot gas welding, also known as hot air welding, is a plastic welding technique which is analogous to  metals, though the specific techniques are different. A specially designed heat gun, called a hot air welder, produces a jet of hot air that softens both the parts to be joined and a plastic filler rod, all of which must be of the same or a very similar plastic. Hot air/gas welding is a common fabrication technique for manufacturing smaller items such as chemical tanks, water tanks, heat exchange and plumbing fitting. Two sheets of plastic are heated via a hot gas or a heating element and then rolled together. This is a quick welding process and can be performed continuously.

hot-gas

Speed tip welding

With speed welding, the plastic welder, similar to a soldering iron in appearance and wattage, is fitted with a feed tube for the plastic weld rod. The speed tip heats the rod and the substrate, while at the same time it presses the molten weld rod into position. A bead of softened plastic is laid into the joint, and the parts and weld rod fuse. With some types of plastic such as polypropylene, the melted welding rod must be “mixed” with the semi-melted base material being fabricated or repaired. These welding techniques have been perfected over time and have been utilized for over 50 years by professional plastic fabricators and repairers internationally. Speed tip welding method is a much faster welding technique and with practice can be used in tight corners. A version of the speed tip “gun” is essentially a soldering iron with a broad, flat tip that can be used to melt the weld joint and filler material to create a bond.

USING ADHESIVE WITH KING STARBOARD®

King StarBoard®, King StarBoard®  ST, King ColorCore®, King ColorBoard® and King CuttingBoard® can not be glued using standard adhesives. Products like 3M’s 5200 work well as a water sealing caulk but will not adhere King StarBoard® to itself or other materials in a permanent bond.  It is preferable to mechanically fasten or weld King StarBoard®, but when an adhesive is necessary you can use a product called Lord 7542-AB or 3M’s Scotch-Weld DP-8005.  We do not represent these products, make any claims about their abilities or accept liability for them.
Lord 7542-AB can be purchased by Wensco online (www.wensco.com) or offline; Phone: 800-253-1569 or 616-785-3333.

If you need to use an adhesion process, make sure you have everything you need for the flame treatment.
A sheet of one hundred and twenty-grit sandpaper.
A cleaning solvent such as Acetone, Toluene or Alcohol and a propane torch
Your selected adhesive of choice and appropriate clamps to secure the bonded parts without damaging the finish of the StarBoard®.
Proper surface preparation of your polymer is critical when using adhesives.
First, lightly sand the King StarBoard® surfaces to be bonded with one hundred and twenty grit sandpaper. Now, clean the surface with a solvent, such as Acetone, Tolulene or Alcohol. Allow solvent to fully evaporate. Move solvent and other flammable liquids and materials from work area.
Following the operating cautions of your propane torch, ignite the flame.
Working in a safe and well-ventilated area, hold the torch so the flame is approximately one to two inches or two and a half to five centimeters away and the blue, oxidizing portion of the flame is on the StarBoard surface to be bonded. Pass the flame over the surface at a rate of approximately twelve inches or thirty centimeters per three seconds.
Total time the material should be exposed to the flame should be two to three seconds, about one half second per stroke.
This light exposure should not deform or melt the polymer in any way. You may see a “shadowing” effect as the flame passes across the surface, this is normal.
Make sure to let the polymer cool before proceeding.
Test the effectiveness of your flame treatment of the surface by wetting it with water.
If the water beads up like on a freshly waxed car, the treatment was not effective. If the water “sheets” or lays flat on the surface, like on an un-waxed car, the treatment was effective and the surface is ready for bonding. If you are unsure if the surface is ready, compare the water’s action on treated area with the untreated area.
For the best adhesion, bond the product within thirty minutes of treatment as the flame treatment is temporary and declines in effectiveness with time. If you get interrupted and cannot complete the bonding within an hour or two you should re-treat the surface again before proceeding.
Then following the instructions from the adhesive manufacturer apply the glue evenly to the surface in a back and forth motion, generally hold back from spreading the adhesive all the way to the edge to avoid making a mess.
Apply the pieces to be bonded together, making sure they are positioned correctly then lightly clamp in place.  Ideally wipe off any excess adhesive that may have squeezed out before it cures.
Let the bond cure for the manufacturers recommended time frame before removing the clamps.