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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


By Vishu Shah, John Wiley & Sons.

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.


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.


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.

Ask about our 3-Part Specification Guide for Architects.

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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 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.

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.


Elite Outdoor Kitchens and Design is a company that creates, designs and installs outdoor cabinets and products using the best alternative to wood, King StarBoard® ST.   It is a marine-grade polymer that has been used in the manufacturing of cabinets on yachts and cruise ships for over 50 years.  King StarBoard ST is produced locally in North Port, FL.  King StarBoard ST allows Elite Outdoor Kitchens the flexibility to do almost anything that can be done with wood.  The application possibilities of KingStarBoard ST ranges from cabinetry, to furniture, planters and storage units.

King StarBoard ST makes it possible for companies such as Elite Outdoor Kitchens and Designs, to build the most environmentally friendly and durable line of outdoor products.


The Marine Industry’s Plastic Transformation

By Boat Outfitters
As most of you are probably aware, our parent company is ironically named Teak Isle Mfg. With the introduction of marine grade plastics in the early 90’s, specifically King Starboard®, the marine industry underwent a dramatic shift away from wood component parts towards plastic component parts.

In 1990, 90%+ of Teak Isle’s fabricated parts were composed of Wood. By 1995, 90%+ were plastic. The first and obvious answer is durability. King Starboard® will last the lifetime of your boat with essentially zero maintenance. Teak requires regular oiling to keep the wood from discoloring and breaking down.

King Starboard® is a UV stabilized homogeneous sheet that will never discolor or require any oiling or refinishing. King Starboard® is easily fabricated using standard woodworking materials and for the most part works just like wood.

The advantage when working with Starboard is that the sheets are perfectly consistent. You do not have to accommodate for grain direction, color inconsistencies, and knots in the wood. You also are not limited by board width and therefore you avoid gluing up boards to create wider products.We stock over 10 different colors of King Starboard®. Largely these are different shades of white to match gel coat colors and give boats a clean flush look.


When King Starboard® was first introduced it was very comparable in cost to teak wood. Now, because of environmental restrictions as well as new political restrictions in Burma (which accounts for nearly 1/3 of the world’s total teak production), Teak prices have skyrocketed.


Being a custom home builder of waterfront homes for over twenty years, we are constantly trying to come up with products that will withstand the elements better for our outdoor kitchens.  I have tried all types of wood and plywood and have since determined that King Starboard ST will withstand the elements and is far superior to any other material I have tried.  You can use this material for all your outdoor cabinetry needs with the utmost of confidence.  Your callbacks will be over.

Gary Graber, President
GNG Construction, Inc.


Michael Servet, a sculptor in the Washington D.C. area, is producing sculptural art forms using King StarBoard®, hardwoods and a variety of other materials.

Here are a few of his many creations using King StarBoard® and King StarBoard® ST.

art Arabesque 1 and 2 Commissioned by US Embasy in Dubai by Michael Enn Sirvet. Made with King StarBoard® ST Dolphin Gray, Sanshade and Black Outdoor Wall Panels by Michael Enn Sirvet Made with King StarBoard® ST Mocha Brown


MEDFORD, Ore., April 19, 2011 — King Plastic Corporation, worldwide supplier of polymer sheet, slab and massive shape products in a broad range of materials, has opened a new warehouse facility in Medford, OR, to better service its commercial customers in the western United States.

“The new warehouse lets us take advantage of our ability to deliver products quicker to customers in western states. Now we can reduce both freight costs and shipping times, while providing our commercial customers more immediate access to our products,” said Jeff King, president of King Plastic Corp.

“Storing products and palletizing inventory in Medford, Oregon will allows us to provide next-day service – if not same day service – which will be a great benefit to our west coast customers,” added manager, Steven King.

All orders will still be placed through our corporate office in North Port, FL  34288.

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 to customers who fabricate products for the marine industry (King StarBoard® brand), signage, food service, neutron shielding, construction, industrial and other applications. The company headquarters is a state-of-the-art, 150,000 square-foot manufacturing facility in North Port, Florida. Visit for more information.


This video will demonstrate the ease of working with King Plastic polymer sheets. From cutting to routing, welding, bending, fasteners and cleaning, this video tells the whole story.


green in every color logoWhen producing our products, King Plastic uses processes that are non-polluting and conserve energy and natural resources, making it economically sound and safe for employees, communities and consumers. The polymers are completely recyclable and left over materials are recycled back into our products. When cutting or fabricating, there is no harmful dust, but instead small shavings that are recyclable. It contains no known harmful substances, including carcinogens or toxins. Off-gassing does not occur when the sheets are cut and fabricated. It is not necessary to use acids or harsh chemicals for finishing, cleaning, or maintenance. The outstanding durability of products made using our sheets maximizes product life cycles thus reducing the overall impact on our environment.

King Colorfast Environmentally Friendly Polymer Sheets

King’s polymer sheets stand up to thousands of uses and keep your bright ideas looking bright for years.  King ColorCore® and King ColorBoard® polymer sheets are the versatile, durable and colorfast to provide that competitive edge in your business you’re looking for. Both polymer brands are UV stabilized and waterproof for a lifetime of worry-free use in harsh outdoor environments. King ColorCore® and King ColorBoard® are also available in several gauges and a variety of matched colors. King ColorCore® unique PolyFusion™ process is a state-of-the-art technology that fuses contrasting layers of colors into a single homogeneous sheet. It is ideal for engraving to make indoor and outdoor signs, as a building sheet for playgrounds, and other recreational and industrial applications.

Using King products may qualify you for LEED Green building rate points.

For additional information, details and technical information please call King Plastic Corporation at 941-493-5502 or send us an email.


Does King StarBoard® require support when bearing a load?

The King StarBoard® Family of Marine Grade Polymers are strong, but they are not a structural material. When using these products, they must be supported by a load bearing framework.

Use King StarBoard® itself to brace your work.

A reinforcing rib of King StarBoard® can be attached under a spanning application such as a shelf or seat to add the necessary stiffness.

How can I add stiffness to my project?

To add stiffness to a King StarBoard® step tread or canoe seat, cut grooves under the King StarBoard® and install a U channel support brace.

Reinforcing pads of King StarBoard® can be attached under a spanning applications such as a swim platform to add the necessary stiffness.

To add stiffness to a King StarBoard® hatch or table, install reinforcing ribs on the bottom.

Is there any way to reverse sheet “pinking” or discoloration?

Reversing Sheet “Pinking” or Discoloration

Pinking, yellowing, discoloring, and gas fading are different names that describe color changes in polyethylene. The condition is strictly cosmetic and does not adversely affect the physical properties of the material. To reverse and remove the pinking condition, expose the material to U.V. for approximately 40 minutes. See Pinking Bulletin for details and prevention instructions.


By Jennifer Briggs

The Ultimate Experience in Outdoor Living!

Being outdoors is part of our lifestyle, and what better way to spend a relaxing weekend than having hors d’oeuvres or barbeque made in a beautiful kitchen on your outside patio! “Elite Outdoor Kitchens and Design can create this outdoor experience and lifestyle for you,” says Rita Pogany, co-owner of the company for the last four years. (more…)