Closed Cell Silicone Sponge
“GRADE 4400”
MEDIUM DENSITY
DESCRIPTION
Silicone sponge is an excellent material for gasketing applications that require a soft compressible material. It is resistant to extreme temperatures and offers good compression set. It is available in Soft, Medium, Firm, and X-Firm Densities. Medium Density is the most popular. It is available in many colors. Generally the surface has a fine fabric finish on both sides and is available in continuous rolls up to 1/2” thick and sheets up to 2” thick.
FEATURES
Extreme High & Low Temperatures
High Compressibility
Low Compression Set
UV / Ozone Resistant
Excellent Gasketing Material
SPECIFICATIONS
AMS3195
Mil-R-46089
ASTM D1056
Mil-R-6130
Mil-Std 670 TE12
| Properties | Specification AMS3195 | Typical Values |
| Density, lbs/cubic in. Under 1/4” thick | .025 Max | .020 |
| Density, lbs/cubic in. Over 1/4” thick | .020 Max | .018 |
| Compression Deflection, PSI | 6-14 | 11 |
| Compression Set, 22 hrs @ 212 oF | 60 % Max | 29 |
| Brittle Point oF | -67 | -103 |
| Temperature Range oF | N/A | -103 to +450Pass |
| Water Absorption | 5% Max | Pass |
| Tensile Strength, PSI | N/A | 100 |
| Elongation, % | N/A | 200 |
| Thermal Conductivity BTU in./hr. ft2 oF | N/A | .6 |
The above values are typical properties and are provided for information only. They should not be used to set specification requirements. It is up to the end user to determine whether the material is suitable for the intended application.
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