Atlantic Gasket’s style AG-231 is a medium density closed cell silicone foam that has been designed to be an alternative to Rogers’ BISCO HT-800. This HT-800 alternative is readily available with comparable specifications and UL listing. AG-231 closed cell silicone foam is available in a range of thicknesses, 1/32" to ½", has a smooth surface texture, and comes in either a grey or black color.
Our AG-231 medium density closed cell silicone foam is comparative to BISCOHT-800 in regard to compression deflection, compression set, density, and flammability UL rating. They have the same temperature range of -55°C to 200°C (-67°F to 392°F) with AG-231 foam being FDA-compliant and meeting the UL94 V-0 specification, like BISCO HT-800.
Atlantic Gasket’s AG-231 closed cell medium density silicone foam is readily available and acts as an excellent, economical gasket material. We have the ability to laminate the silicone foam with an adhesive backing, slit it to our customer’s required width, and custom-cut gaskets to size via die-cutting, waterjet-cutting, or flashcutting (knife-cutting). The silicone foam is available in a width of 18" or 36" depending on thickness in various lengths
Below is a full listing of AG-231’s physical and visual properties, such as density, compression deflection, compression set, flammability, UL rating, temperature range, and more.
FDA regulation 21 CFR 77.2600
UL-94 V-0 HF-1
ASTM D1056-14 2D2 & 2D3
|Properties||Test Method||Typical Values|
|Thickness||1/32" - 1/2"|
|Color||Grey or Black|
|Density||ASTM D1056||23 pcf (370 kg/m³)|
|Compression Deflection (25%)||ASTM D1056||6-14 psi (41-96 kPa)|
|Compression Set||ASTM D1056||< 1%|
|Tensile Strength||ASTM D412||32 psi (220 kPa)|
|-67° to 392°F
-55° to 200°C
|Flammability||UL94||V-0 and HF-1 Rating|
|UL94||V-0 and HF-1|
|ASTM D1056-14||ASTM D1056||2D2 / 2D3|
The list below shows various standard varieties of flame retardant silicone sponge that Atlantic Gasket offers. They come in a wide range of different widths, thicknesses, and colors. Atlantic Gasket has the ability to die-cut, waterjet-cut, and slit this silicone sponge to your specific needs.
|Part Number||Density||Color||Thickness||Roll Width|
|AG-231-032-36||Medium||Grey or Black||.032" Thick||36" Medium Density Silicone Foam|
|AG-231-062-36||Medium||Grey or Black||.062" Thick||36" Medium Density Silicone Foam|
|AG-231-094-36||Medium||Grey or Black||.094" Thick||36" Medium Density Silicone Foam|
|AG-231-125-36||Medium||Grey or Black||.125" Thick||36" Medium Density Silicone Foam|
|AG-231-188-18||Medium||Grey or Black||.188" Thick||18" Medium Density Silicone Foam|
|AG-231-250-18||Medium||Grey or Black||.250" Thick||18" Medium Density Silicone Foam|
|AG-231-375-18||Medium||Grey or Black||.375" Thick||18" Medium Density Silicone Foam|
|AG-231-500-18||Medium||Grey or Black||.500" Thick||18" Medium Density Silicone Foam|
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.