Polyurethane Foam Core - Overstock

(0) No Reviews yet
$31.46 to $148.79



Polyurethane Foam is a CFC-free, rigid, closed-cell, flame-retardant foam core and has a density of 6 pounds per cubic foot (PCF). It exhibits a high strength-to-weight ratio due to its cellular structure and cross-linked resin. Because of its closed-cell structure, Polyurethane Foam has great resistance to water absorption, and will not swell, crack, or split on exposure to water.

Additional handling fees apply for all foam orders. The below fees will be automatically added to the order

  • 30.00 for 24” x 48”
  • 50.00 for 48” x 48”
  • Stable and inert
  • Flame retardant
  • High strength-to-weight ratio from cross-linked resin
  • Resistant to most chemicals and solvents
  • Easily shaped with common woodworking tools
  • Performs well as wood replacement
  • Will not support fungal growth
Uses Include
  • Models and design prototypes
  • Composite core, especially where flame retardation is important
  • Radioactive materials (RAM) transportation packages
  • Vacuum form dies and mold patterns
  • Load bearing
  • Dielectric material for radomes and antennas


Physical Properties
Core Thickness:
+/- 15%
6 PCF +/- 10%
Structural Foam Properties
Compressive Strength ǁ to rise:
154 psi @ 75°F
Compressive Strength⊥ to rise:
139 psi @ 75°F
Compressive Modulus ǁ to rise:
4275 psi @ 75°F
Compressive Modulus⊥ to rise:
3437 psi @ 75°F
Tensile Strength ǁ to rise:
182 psi
Tensile Strength⊥ to rise:
174 psi
Tensile Modulus ǁ to rise:
5949 psi
Tensile Modulus⊥ to rise:
5662 psi
Shear Strength ǁ to rise:
116 psi
Shear Strength⊥ to rise:
116 psi
Shear Modulus ǁ to rise:
4133 psi
Shear Modulus⊥ to rise:
1457 psi
Flexural Strength ǁ to rise:
226 psi
Flexural Strength⊥ to rise:
210 psi
Flexural Modulus ǁ to rise:
5944 psi
Flexural Modulus⊥ to rise:
5421 psi
~3.4 x 105/in/in/°F
Closed Cell Content:
Hardness, Shore-D:
Water Absorption:
0.17 lbs/ft²
Specific Heat @ 25°C:
0.353 BTU/lb-°F
Heat Combustion:
11706 BTU/lb
Thermal Conductivity:
0.205 BTU*in/ft²*°F*h
Max Temp:

Please note: All data to be used as a guide only; not a specification. The technical information is for the stand alone raw materials, not the constructed panel.

Data Sheets
  • BMS 8-133


  • When using as a tooling board, it is recommended that you do a rough cut first, leaving 1-3 mm of material for finishing. Use caution at edges and tight corners to avoid chipping at the start of a new pathway and when exiting the foam.


Need something different? We've got you covered.

As a leading manufacturer of composite structures you can rely on us to provide rapid, cost-effective and high-quality solutions to meet and exceed your project requirements.


When a stock material doesn’t meet your requirements, we can utilize our supplier relationships to acquire materials that best fit your needs.

  • Density
  • Thickness
  • Sizes up to 48" x 96"

We can tailor our stock products to meet your needs by offering the following services:

  • CNC Machining
  • Cutting
  • Contouring/Profiling
  • Potting
  • Sandwhich Panel Construction
Request a Quote

Contact us today to discuss your requirements.
Already know what your looking for?


Due to packing requirements to preserve material integrity, the Polyurethane Foam requires custom packaging.

Additional handling fees apply for all foam orders. The below fees will be automatically added to the order.

  • 30.00 for 24” x 48”
  • 50.00 for 48” x 48”

Final shipping charges may not be available at the time of ordering. A quote can be requested or shipping charges can be automatically billed at the time of shipment.



Products sold as a clearance may be excess inventory that does not meet the stringent specifications of medical or aerospace applications, have blemishes and/or other imperfections as noted in the product descriptions. These items are sold "As Is", are nonrefundable and will not be backordered. If an ordered quantity cannot be fulfilled, we will ship available on hand quantities and automatically cancel any remaining balance.

Ratings & Reviews

No reviews available

Be the first to Write a Review