Description: Style AG1346-S is a soft density closed cell silicone sponge material designed for use in gasketing applications that require a soft compressible material. Soft density closed cell silicone sponge offers resistance to low and high temperatures and provides users with a service temperature of -103°F to +450°F. Style AG1346-S is UV and ozone resistant and takes a low compression set. Soft density closed cell silicone sponge is formulated to meet the following requirements: ASTM D1056, MIL-R-6130, and MIL-STD 670 TE7.
Atlantic Gasket’s closed cell silicone sponge gasketing material is available in a wide range of densities from soft (AG1346-S) to extra-firm (AG1346-XF) with varying densities and formulations available in between. Soft density closed cell silicone sponge can be converted into rolls ranging from 1/4" wide up to 36" in width. Available, in many colors, the surface of Style AG1346-S has a fine fabric finish on both sides and can be manufactured in thicknesses ranging from as thin as 1/32", to as thick as 2". Atlantic Gasket has the ability to supply soft density closed cell silicone sponge without adhesive or with either our standard acrylic adhesive or our high-temperature acrylic adhesive. Atlantic Gasket has the capacity to fabricate soft density closed cell silicone sponge by die-cutting or waterjet cutting to meet your design and production requirements.
ASTM D 1056
MIL-STD 670 TE7
|Physical Property||Test Method||Limits||Unit of Measure||Typical Values|
|COMPRESSION DEFLECTION||ASTM D 1056||7 +/-2||psi||7|
(Under 1/4" Thick)
(Over 1/4" Thick)
|ASTM D 1056||.025 Max.
|THERMAL CONDUCTIVITY||ASTM F 433||N/A||in/hr/ft2/°F||.75|
|WATER ABSORPTION*||ASTM D 1056 *||5% Max.||%||5|
(22 HRS. AT 212°F)
|ASTM D 395||60% Max.||%||29|
|ELONGATION||ASTM D 412||N/A||%||150|
|TENSILE STRENGTH||ASTM D 412||N/A||psi||90|
|DIELECTRIC STRENGTH (APPROX.)||N/A||N/A||Volts/mil||150|
|BRITTLE POINT||ASTM D 746||-67°F
|LOW TEMPERATURE||ASTM D 573||N/A||°F
|HIGH TEMPERATURE||ASTM D 573||N/A||°F
*Note – Test samples prepared have skin on all sides in accordance with ASTM D3183, as allowed per ASTM D1056
This information is furnished as a guide for selecting materials. Atlantic Gasket Corp. disclaims liability for results or use of this information. It is the customer’s responsibility to obtain and test samples when determining suitability of material for a particular application.
Click here to download a specification Word document.