Flexible, compressible COHRlastic silicone closed cell sponge is designed for high-performance gasketing, thermal shielding, vibration mounts and press pads. It is available in six constructions.
R10470, a general-purpose silicone sponge, can be used in most applications.
R10480 has extremely low compression set and maintains its resiliency even under extended compression.
R10460 is flame retardant.When held in a vertical position and exposed to a 2,000 °F flame for 12 seconds, there is no residential flame and less than a 10 second afterglow. Like R10480, it is especially resistant to compression set.
R10450 silicone sponge with fiberglass reinforcement is a unique construction. It has the compressibility of sponge, plus dimensional stability in the X-Y direction. The absence of stretch contributes to the consistent size and shape of die cut parts and eliminates outward extrusion under pressure.
R10490 fluorosilicone sponge rubber can be used as a gasket where it is necessary to contain fluids that would degrade normal silicone sponge and solid materials (special order basis).
R10404 closed-cell conformable silicone rubber sponge is designed for use where both conformability and heat transfer are necessary, such as between printed circuit boards and heat sinks, decal transfer or applying heat activated adhesives.
R10460 meets UL94 Flammability Classification 94HBF. R10470 Medium and R10460 meet UL 1570, 1571 and 1572.
R10470, a general-purpose silicone sponge, can be used in most applications.
R10480 has extremely low compression set and maintains its resiliency even under extended compression.
R10460 is flame retardant.When held in a vertical position and exposed to a 2,000 °F flame for 12 seconds, there is no residential flame and less than a 10 second afterglow. Like R10480, it is especially resistant to compression set.
R10450 silicone sponge with fiberglass reinforcement is a unique construction. It has the compressibility of sponge, plus dimensional stability in the X-Y direction. The absence of stretch contributes to the consistent size and shape of die cut parts and eliminates outward extrusion under pressure.
R10490 fluorosilicone sponge rubber can be used as a gasket where it is necessary to contain fluids that would degrade normal silicone sponge and solid materials (special order basis).
R10404 closed-cell conformable silicone rubber sponge is designed for use where both conformability and heat transfer are necessary, such as between printed circuit boards and heat sinks, decal transfer or applying heat activated adhesives.
R10460 meets UL94 Flammability Classification 94HBF. R10470 Medium and R10460 meet UL 1570, 1571 and 1572.
Unit of Measure
Test Method Water Absorption |
N/A D1056 |
Water Absorption |
N/A Less than 5 % |
Dielectric Strength |
N/A 145 V/mil |
Thermal Conductivity (Average) |
N/A 2.6 x 10-4 x (cal·cm/ºC·cm·s) 0.75 BTU in/h·ft2 ºF |
Specific Heat |
N/A 0.3 BTU/lb/ºF |
| Linear Thermal Expansion1 | N/A 1.8 x 10-4 in/in/ºF |
Outgassing (NASA Testing) |
N/A Less than 1% weight loss (after 24 h at 257 ºF in vacuum) |
Width/Sheet Size |
N/A 36 x 36 in |
Color |
N/A Black Gray Orange-tan |
Thickness |
N/A 1/16 ±1/64 in1/2 ±3/64 in1/32 ±.010 in1/4 /+3/64 to –1/32 in1/8 ±1/32 in3/16 ±1/32 in3/8 ±3/64 inSpecial order. Minimum quantities apply - 3/32 ±1/64 in |
Test Method Compression Deflection |
N/A D1056 |
| Compression Deflection2 | N/A 10 psi |
Test Method Tensile Strength |
N/A D412 |
Tensile Strength |
N/A 90 psi |
Test Method Elongation |
N/A D412 |
Elongation at Break |
N/A 150 % |
Test Method Compression Set |
N/A D1056 |
Compression Set (Compressed 50 % for 22 h at 212 ºF) |
N/A 25 % |
Test Method Density |
N/A D3574 |
Density |
N/A .017 lb/in |
- 1 Room temperature to +350 ºF
- 2 Compressed 25 % at room temperature
