As Seen in Packaging World Magazine, The Plastics Distributor and Fabricator Magazine (PD&F), and International Association of Plastics Distribution (IAPD).

King ColorBoard® and King ColorCore®

Outlasts and Outperforms

King ColorCore® is a versatile, environmentally stabilized, high-impact-resistant polymer sheet with multiple layers of contrasting colors. Its thin cap layers and bright primary colors make it ideal for engraving. King ColorCore® is made to coordinate with King ColorBoard®. Base materials are FDA and USDA approved. Available in 18 standard color combinations.


Hunters Ridge, a subdivision in the Mahomet, Illinois community, needed a 72” wide sign that would withstand outdoor weather conditions and last a long time. Simon Anderson, a fabricator, was given the task to find the right material and make the outdoor sign. The sign is made with a 1/2“ gauge 48” x 96” sheet of King ColorCore® in Green/Tan/Green color. King ColorCore® can be fabricated using common woodworking tools and techniques. To learn more about the project, watch Simon Anderson’s video on How to make BIG signs on a small CNC // Tiling

As Seen in Signs of the Times


Oscar Scherer State Park SignsAs Seen in Signs of the Times!


Oscar Scherer State Park trail signs are made using 3/4″ gauge 48″ x 96″ sheets of King ColorCore® in brown/white/brown color.

King ColorCore® is a versatile, environmentally stabilized sheet with multiple layers of contrasting colors. Its thin cap layers and bright primary colors make it ideal for signage, marine, playground and recreational applications. It will never warp, rot or delaminate. Available in 18 standard colors. Custom sheet sizes, gauges and colors available.

Where to Buy


As Seen in Signs of the Times!

The signs are made using 3/4″ gauge 48″ x 96″ sheets of King ColorCore® in a custom color brown/yellow/brown. It will never warp, rot or delaminate. Available in 18 standard colors. Custom sheet sizes, gauges and colors available.

Where to Buy


King ColorCore® - As Seen in Signs of the Times - Metro Summit Parks

As Seen in Signs of Times!

The signs are made using 3/4″ gauge 48″ x 96″ sheets of King ColorCore® in a custom color brown/yellow/brown. It will never warp, rot or delaminate. Available in 18 standard colors. Custom sheet sizes, gauges and colors available.

King ColorCore® - As Seen in Signs of the Times - Oceanside

As Seen in Signs of Times!

The outdoor sign is made using 3/4″ gauge 48″ x 96″ sheets of King ColorCore® in blue/white/blue. Each letter consists of two CNC engraved sheets, joined by a half lap joint and screwed together to produce each of the nin 8′ x 8′ letters.

Where to Buy


King Plastic Was Pleased To Exhibit At A Record-Breaking ISA Sign Expo

April 28, 2016 – King Plastic Corporation was pleased to exhibit at a record-breaking ISA Sign Expo (International Sign Association) at the Orange County Convention Center. According to, the 200,000 square foot trade show was attended by 20,044 people from around the globe making it the largest ISA Sign Expo in a decade and largest in Orlando, FL.

King Plastic representatives enjoyed meeting show attendees and making several connections. The company displayed a golf course theme with signs made with King ColorCore®, the multi-color engravable polymer sheet.

Watch now.

Visit the King ColorCore® page to see product application photos, fabrication and CNC tips, and videos.


King Plastic Corporation to Feature King ColorCore®, The Multi-Color Engravable Polymer Sheet, at ISA International Sign Expo 2016

Stop by Booth #1575 at Sign Expo 2016

North Port, FL, March 14, 2016 – King Plastic Corporation, a leading manufacturer of polymer sheets, slabs and massive shapes will exhibit at the ISA International Sign Expo, April 20-23, 2016, at the Orange County Convention Center, South Building in Orlando, FL. King Plastic Corporation will showcase its popular King ColorCore®, the multi-color engravable polymer sheet, in Booth #1575.

The International Sign Association is a 2,300-member trade association, the members of which are manufacturers, users and suppliers of on-premise signs and other graphics products from the 50 United States and 54 countries around the world. ISA supports, promotes and improves the graphics industry, which sustains the nation’s retail, distribution, service and manufacturing industries.

“King ColorCore raises the bar for indoor and outdoor signage applications,” said Michael Fabbri, National Sales Manager of King Plastic Corporation. “Fabricators can use their customer’s imagination to design the perfect sign to last a lifetime. King ColorCore is made with high-impact resistant polymer to handle more abuse than conventional sign materials.”

King Plastic will highlight the features and benefits of using King ColorCore for outdoor sign applications through its golf course themed booth. Attendees are encouraged to stop by the booth, attempt a hole-in-one and receive a King ColorCore golf towel. Also, register to win a Talon SeaSucker Single Bike Rack made with King ColorCore. Free expo passes are available at using promo code KIN234.

Register Now

King ColorCore is a versatile, environmentally stabilized sheet with multiple layers of contrasting colors. Its thin cap layers and bright primary colors make it ideal for signage, marine, playground and recreational applications. For maximum versatility, standard colors are made to coordinate with King ColorBoard. King ColorCore is easy to engrave and machine, as the cap is approximately .050” thick.

To learn more about King Plastic Corporation or to find a distributor, visit

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.


Carolina Smokin John's BBQ Cutting BoardKing Plastic had the pleasure of interviewing John Young, Pitmaster at Carolina Smokin John’s BBQ from Winston-Salem, North Carolina. Young and his team travel within the United States competing in barbecue events sanctioned by Kansas City Barbecue Society (KCBS), The North Carolina Barbecue Society and others. Carolina Smokin John’s BBQ has many accolades including Grand Champion in the Texas Pete Twin City Rib Fest. In addition to competing, Young offers catering services for special events.  In the video below, see John Young working his chopping BBQ skills on his custom engraved cutting board made with King ColorCore®.

Where to Buy


NORTH PORT, FL, April 27, 2015—King Plastic Corporation was pleased to attend another successful show at the International Sign Association (ISA) Sign Expo 2015 in Las Vegas, NV.  Thousands of sign expo attendees in Las Vegas took advantage of the opportunities to network with industry colleagues, increase their industry knowledge through education and expand their product lines and capabilities on the trade show floor.  Held April 9-11, 2015, the ISA Sign Expo hosted more than 600 exhibitors in 213,000 net square feet of trade show floor!


Photo courtesy of Foust Marketing

King Plastic representatives enjoyed the show and made several great connections.  The company featured its multi-color engravable polymer sheet, King ColorCore® as well as a complimentary product called King ColorBoard®, the colorful environmentally stabilized polymer sheet.

View King ColorCore Product Literature
View Product Literature

To learn more about King Plastic Corporation, visit

About King Plastic Corporation
King Plastic Corporation began as a small, family enterprise. 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, Healthcare, Architectural, Industrial and other Markets.  The company headquarters is a 150,000 square-foot manufacturing facility in North Port, Florida. The King family still maintains independent ownership and control. The same values that made the company so successful in the past still prevail today.

King Plastic Corporation pioneered the first marine-grade polymer sheet, King StarBoard®, which remains the dominant brand in the marine industry today. Since then, King has produced dozens of breakthrough products for a wide variety of industries, from food service to signage to giant slabs weighing more than 6,000 pounds. King continues to raise the bar with new products, new production techniques and new standards of excellence.

King’s commitment to quality doesn’t end with products. The company’s in-house sales team excels at product knowledge and developing long-term customer relationships. Its worldwide network of plastics distributors includes the best in the industry. Together, they make sure manufacturers and fabricators receive the right material, at the right price, right on time.



  1. Build handsome polymer cabinets and case goods with King StarBoard® ST
  2. Upgrade to King MicroShield® with an advanced antimicrobial 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.

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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.


By Van Niser

Signs and the information they convey have become an integral part of daily life. Companies of various sizes serve this vast market, but they all have common problems when it comes to routing of the materials common to the industry. Wood, aluminum, foam and plastic all have different cutting characteristics and no individual tool can solve all routing problems. This is particularly evident in the routing of plastics in the sign industry.

As a starting point, plastics can be placed into two general categories: flexible and rigid. The tools of choice for flexible plastic usually involve the use of single or double edge “O” flute tools, which are available in straight or spiral flute configurations. In terms of rigid plastics, double edge straight “V” flute tools, spiral “O” flutes with hard plastic geometry, and two and three flute finishers are recommended. The tool materials for most of these router bits are readily available in high-speed steel for hand operations and solid carbide for CNC routing. Solid carbide is a very durable material when utilized in a controlled environment of CNC, but not reliable in hand routing, which tends to be less rigid with more opportunity for tool breakage.

The aforementioned recommendations are general in nature and are just a beginning for tool selection. In order to target an application, the sign maker has a new resource on the Internet at This site provides a specific tool recommendation for a variety of plastic materials. The major emphasis of this website is to recommend router tools that provide the best finish at a productive feed rate. Sign makers, who historically use smaller diameter tools to achieve the necessary radii associated with lettering, will be pleasantly surprised. The tool diameter is the controlling factor in feed rate, but larger diameters were not necessarily superior in terms of finish. The use of micrograin carbide with the necessary geometry to achieve chip evacuation has made smaller diameter tools more effective for the sign industry. The site can also be accessed via a link on IAPD’s web site at

Recently, there have been several new styles of specialty tools developed to improve finishes with faster cycle times without tool changes and or advanced programming techniques. Both should prove to be advantageous to the sign industry. The first of these tools was developed to provide a smooth bottom surface in lettering or pocketing applications. Most router tools are designed to plunge and rout with the emphasis on the side geometry rather than the point. Consequently, the point end would always leave swirl marks, which required a secondary operation to remove the swirls.


The new tool (Figure 1) utilizes a near flat point with radiused corners to create a smooth bottom with an aesthetically pleasing result.


The second innovation (Figure 2) is the development of a rout and chamfer bit designed for plastic sheets. By combining both a straight flute optimized for cutting plastics with a cutting edge sized for specific sheet sizes and a 45 degree chamfer edge, these tools can rout out plastic parts and apply a variable depth edge chamfer in a single pass.

By combining these features into a single tool, tool changes within the machining cycle are eliminated and CNC routers without tool changing spindles have new capabilities for parts production. The advances in router tooling have generally followed the rapid growth and usage of CNC routers or router tables as they are commonly called in the sign industry. These machines have revolutionized the speed and accuracy of sign making and the ability to produce intricate shapes and designs with specialized software. Router tooling has enhanced the CNC user by providing stronger tools with improved cutting geometry specific to the material being machined. However, merely choosing the correct tool without effective machining practices is an exercise in futility. Consequently, a review of proper machining practices would be in order. 

  • Maintain CNC machines per manufacturer’s recommendation with proper lubrication of machine slides and drive systems
  • Check for play in the table or spindle mounting systems
  • Establish a collet, collet nut, and tool holder maintenance program and replace collets after 600-700 hours of usage
  • Ensure part rigidity by following proper spoilboard techniques
  • Establish collecting procedures to maximize tool rigidity
  • Maximize chipload to minimize tool wear
  • Select tools with the shortest possible cutting edge length to achieve depth of cut
  • Use straight through tools where the cutting edge length and shank are the same size to reduce breakage
  • Maximize dust collection to completely evacuate gummy chips produced by some plastics The right tool for the job and sound CNC machining practices will improve throughput, product quality and profitability in the sign industry.


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.