Piedmont Plastics carries all types of foam sheet, including open cell foam sheet for cushions and closed cell foam sheet for signs and prototypes.

Foam Sheet
Lightweight, durable foam boards for signage, displays, and graphic art projects.
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Fabrication Support
Cut-to-Size, Routing
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Local
Inventory Stocking
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National
Inventory Access
Product Overview
Widely used for:
Performance Characteristics:
Typical Properties of Foam Sheet
Common Properties
- Common Brand Names FOME - COR®, GATORFOAM®, GATORPLAST®
- Typical Thickness Size 0.25 - 3 in
- Typical Lengths 48 - 96 in
- Typical Widths 24 - 48 in
- Friendly Names Foam Board, Foam Core, Foam Core Board, Poster Board
- Common Color Options White, Black, Natural
Electrical Properties
- Dielectric Strength 200kV/mm
- Dielectric Constant 1.2
- Dissipation Factor 0.010
- Volume Resistivity 10^14Ohm-cm
- Surface Resistivity 10^11Ohm/sq
- Arc Resistance 120seconds
- Comparative Tracking Index (CTI) 600V
- Thermal Coefficient of Dielectric Constant 0.002/°C
- Electrostatic Discharge (ESD) Sensitivity Class 2
- Breakdown Voltage 25kV
Mechanical Properties
- Hardness, Rockwell R 55
- Tensile Strength, Ultimate 0.4MPa
- Tensile Strength, Yield 0.2MPa
- Elongation at Break 120%
- Elongation at Yield 3%
- Modulus of Elasticity 15MPa
- Flexural Yield Strength 0.3MPa
- Flexural Modulus 13MPa
- Compressive Yield Strength 0.5MPa
- Bearing Yield Strength 0.4MPa
- Shear Strength 0.3MPa
- Izod Impact, Notched 5J/m
- Izod Impact, Unnotched 15J/m
- Gardner Impact 7J
- Falling Dart Impact 9J
- Instrumented Impact Total Energy 10J
Thermal Properties
- CTE, linear N/A1/K
- CTE, linear, Transverse to Flow N/A1/K
- Deflection Temperature at 0.46 MPa (66 psi) N/A°C
- Deflection Temperature at 1.8 MPa (264 psi) N/A°C
- Vicat Softening Point N/A°C
- Flammability, UL94 N/A
- Max Continuous Operating Temperature in F N/A°F
- Minimum Operating Temperature in F N/A°F
- Thermal Conductivity N/AW/m·K
Regulations
- UL-94 Flame Class
- FDA
- ASTM/Mil-Spec
- NSF
- USP Class VI
- FAR 25.853 Flammability
- FAR 25.853 Smoke
- Boeing/Airbus Toxicity
- D635 Self Extinguishing
- FAR 25.853 Heat Release (OSU 65/65)
- RoHS Compliant
- REACH Compliant
Premium Foam Sheet Boards
Foam sheet boards are an excellent choice for a wide range of applications that require lightweight and durable materials. Made with a polystyrene foam core and faced with paper or plastic, these boards are perfect for use in signage, displays, and presentations. Their lightweight nature makes them easy to handle and transport, while the smooth surface allows for crisp printing and clean cuts, making them ideal for graphic arts and creative projects.
Our foam boards come in various sizes and thicknesses to fit your needs. Whether you're creating vibrant signage, building trade show displays, or designing eye-catching advertising materials, foam boards offer the flexibility and reliability you need. Available in different finishes, including matte and glossy, these boards are designed to meet the needs of professionals in industries like marketing, advertising, and interior design.


An Expert is just around the corner.
With over 100 years of combined product knowledge and industry experience, we are confident our plastics experts can help you find a solution for your application.
Key Features of Our Foam Boards:
Lightweight & Durable: Ideal for easy handling and transportation without compromising strength.
Smooth Surface: Perfect for graphic printing and detailed artwork.
Multiple Thickness Options: Available in a range of thicknesses to suit different applications.
Versatile Applications: Use in signage, displays, framing, and more.
Custom Cutting & Fabrication: Available in custom sizes and finishes tailored to your specific requirements.
Weather-resistant Coating: Some foam boards come with a weather-resistant layer, suitable for outdoor applications.
Applications of Foam Boards:
Foam boards are commonly used across various industries due to their versatility and cost-effectiveness. Some of the key applications include:
Graphic Arts & Printing: The smooth surface makes it easy to print high-quality graphics for posters, promotional materials, and signage.
Trade Show Displays: Foam boards are lightweight, easy to set up, and customizable to fit any booth or exhibition space.
Advertising: Perfect for creating impactful and attention-grabbing displays in retail, exhibitions, and events.
Interior Design & Framing: Used for framing artwork or as a backing material in interior décor projects.
Related Products
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Paper Faced Foam Board
Piedmont Plastics carries paper faced foam sheet, Fome-Cor® and foam board used for art canvases, mounting, backing, framing, die cutting and 3-D designs.
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Styrene-Faced Foam Sheet
Piedmont carries styrene-faced foam sheets for signage, dimensional lettering, packaging, and preservation, including Infinity, Gatorplast, and Ultra Board.
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Wood Fiber Faced Foam Sheet
Piedmont Plastics carries wood fiber faced foam sheets and panels for framing, signs, exhibits, and displays, such as white, black, or wood Gatorfoam.
Frequently Asked Questions
Have questions about foam boards? Our FAQs cover the essentials to help you make informed decisions.
Foam boards have a foam core, usually made from polystyrene foam, and are sandwiched between materials like paper, high-impact polystyrene, or wood. Specialty boards are available with facings of chalkboard, dry-erase surfaces, canvas, cork, and more.
Foam boards can be easily cut with a utility knife, ensuring clean edges and precise cuts. For larger quantities, CNC cutting is also available. Piedmont Plastics can also cut your material to size.
While foam boards are lightweight and durable, they can be weather-resistant when coated with specific layers for outdoor applications.
Yes, foam boards are commonly used for framing artwork or photos due to their lightweight nature.
Why Buy Foam Board at Piedmont Plastics?
At Piedmont Plastics, we offer more than just foam boards—we provide complete solutions tailored to your specific needs. Here’s why we are your ideal supplier for high-quality foam boards:
Wide Product Selection: Our extensive inventory features foam boards in various sizes, thicknesses, and finishes, perfect for a wide range of applications.
Custom Cutting and Fabrication Services: Utilizing advanced CNC technology, we provide precision cutting and fabrication services to create foam board components tailored to your exact specifications.
Proven Expertise: With years of experience in the industry, our knowledgeable team is ready to help you select the ideal foam board for your project, ensuring the best fit for your requirements.
Multiple Locations: With a nationwide network of branches, we ensure that high-performance foam boards are always within easy reach, no matter where you are.
Unmatched Quality: Committed to excellence, we guarantee that our foam boards meet or exceed industry standards, ensuring reliable performance for all your applications.
Talk to An Expert In
Baltimore/Washington
7045 Troy Hill Drive
301-881-7900
