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GRADE 4400 CLOSED CELL, MEDIUM SILICONE SPONGE

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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