Closed Cell Silicone Sponge/Foam

The resiliency, high temperature stability, and general inertness make closed cell silicone sponge rubber a preferred gasket and sealing material for a diverse range of industrial, mechanical, military, and commercial applications. At Atlantic Gasket Corporation, a custom gaskets manufacturer, closed cell silicone is offered in soft, medium, firm, and extra-firm densities. We also provide our customers with low compression set, flame retardant, and fiberglass-reinforced closed cell silicone alternatives. Available in sheeting, profiles, tubing, and different colors, our silicone compounds can be customized to meet your precise requirements for seals and gaskets. Although usage is not limited to the following applications, we provide a few examples for your consideration.

Example Gasket Application Properties
High Temperature Silicones can perform well in an extreme low and high temperature range from -103° F to 450° F.
Weatherproofing This gasket material is resistant to aging and degradation from sunlight and ozone.
Automotive Closed cell silicone is resistant to many chemicals and meets many industry flame retarding specifications.
HVAC Sealing & Mechanical Seals in Equipment Access Panels The closed cell structure provides air and moisture barrier under ambient conditions.s

Is Silicone Right for your New or Replacement Gasket Application? Find the answer to your question below.
  • Are there standards or requirements that your application must conform to? If so, depending on the grade, silicone meets USP Class 6 standards for medical applications, BMS-168, MIL-R-46089, DMS1980, ASTM-D-1056, AMS3195, MIL-R-6130, MIL-STD 670 TE7 and TE12, AMS3196, AMS3325, AMS3326, AMS3327, AMS3320, and AMS3315 specifications for military, automotive and aerospace applications, and UL 94 flammability testing for flame retardant parts in devices and appliances.
  • Do you need a custom conductive gasket or seal? If so, Atlantic Gasket offers electrically and thermally conductive silicone grades to provide protection against electrostatic discharge and allow heat transference and insulation accordingly.

AGSISOFT

Our AGSISOFT closed cell soft density silicone sponge is an excellent gasket material providing low compression set and high temperature resistance. This soft density sponge is formulated per ASTM D6576 Type II, MIL-R-46089, MIL-R-6130 Type II, FDA, UL94 V-0, and UL94 HB. Our closed cell silicone sponge is also available in a medium density AGSIMEDIUM, firm density AGSIFIRM, and flame retardant option (AGSIFIRES, AGSIFIREM, and AGSIFIREF).

AGSIMEDIUM

Our AGSIMEDIUM closed cell medium density silicone sponge is an excellent gasket material providing low compression set and high temperature resistance. This medium density sponge is formulated per AMS3195, ASTM D6576 Type II, MIL-R-46089, MIL-R-6130 Type II, FDA, UL94 V-0, and UL94 HB. Our closed cell silicone sponge is also available in a soft density AGSISOFT, firm density AGSIFIRM, and flame retardant option (AGSIFIRES, AGSIFIREM, and AGSIFIREF).

AGSIFIRM

Our AGSIFIRM closed cell firm density silicone sponge is an excellent gasket material providing low compression set and high temperature resistance. This firm density sponge is formulated per AMS3196, ASTM D6576 Type II, MIL-R-46089, MIL-R-6130 TYII, FDA, UL94 V-0, and UL94 HB. Our closed cell silicone sponge is also available in a soft density AGSISOFT, medium density AGSIMEDIUM, and flame retardant option (AGSIFIRES, AGSIFIREM, and AGSIFIREF).

AGSIFIRES

Our AGSIFIRES closed cell soft density flame retardant silicone sponge is an excellent gasket material providing low compression set and high temperature resistance. This flame retardant silicone sponge is formulated per FMVSS 302 and UL94 HB. Our closed cell soft density flame retardant silicone sponge is also available in a medium density AGSIFIREM and firm density AGSIFIREF.

AGSIFIREM

Our AGSIFIREM closed cell medium density flame retardant silicone sponge is an excellent gasket material providing low compression set and high temperature resistance. This flame retardant silicone sponge is formulated per FMVSS 302 and UL94 HB while being capable of meeting ASTM D6576 Type II Grade A, MIL-R-6130 Type II Grade A, and AMS3195. Our closed cell medium density flame retardant silicone sponge is also available in a soft density AGSIFIRES and firm density AGSIFIREF.

AGSIFIREF

Our AGSIFIREF closed cell firm density flame retardant silicone sponge is an excellent gasket material providing low compression set and high temperature resistance. This flame retardant silicone sponge is formulated per FMVSS 302 and UL94 HB while being capable of meeting ASTM D6576 Type II Grade A, MIL-R-6130 Type II Grade A, and AMS3196. Our closed cell firm density flame retardant silicone sponge is also available in a soft density AGSIFIRES and medium density AGSIFIREM.

AG-LCS-M

Our AG-LCS-M is a low compression set, medium density closed cell silicone sponge which is designed for gasket applications requiring extraordinary resistance to compression set, extreme low and/or high temperatures, and provides excellent compressibility. This low compression, medium density silicone sponge is formulated to be capable to meet AMS3195, MIL-R-46089 superseded by ASTM D1056, and MIL-R-6130C superseded by ASTM D6576 Type II.

Rogers’ BISCO® Silicone Foam Alternatives

The following open cell and closed cell silicone foam/sponge products are designed to be alternative options for Rogers’ BISCO silicone foam products, such as HT-800 and BF-1000.

AG-231

Our alternative to Rogers’ BISCO HT-800 closed cell silicone foam is AG-231. Our AG-231 medium density closed cell silicone foam is designed as an alternative option to the BISCO HT-800 coming in a grey or black color and also provided in a variety of thicknesses: .032" thick, .062" thick, .094" thick, .125" thick, .188" thick, .250" thick, .375" thick, and .500" thick. AG-231 silicone foam offers a smooth surface texture, excellent compression set, high temperature resistance, and a UL-94 V-0 HF1 rating like the Rogers’ BISCO HT-800 silicone foam product.

AG-311

Our alternative to Rogers’ BISCO BF-1000 open cell silicone foam is AG-311. Our AG-311 extra soft density open cell silicone foam is designed as an alternative option to the BISCO BF-1000 coming in a white, grey, or black color and also provided in a variety of thicknesses: .062" thick, .094" thick, .125" thick, .188" thick, .250" thick, .375" thick, and .500" thick. AG-311 silicone foam offers a smooth surface texture, excellent compression set, high temperature resistance, and a UL-94 V-0 HF1 rating like the Rogers’ BISCO BF-1000 silicone foam product.

Whether you need a new automotive gasket or a replacement high temperature gasket, Atlantic Gasket has the silicone you need to ensure that your end product operates at top performance.