Elastomerics Blog

Silicone Foam Burn Test

Continually committed to testing and validating their materials, Rogers Corporation recently had BISCO® HT-800 silicone foam tested by a third party for flame propagation per ASTM C 1166. ASTM C 1166 is a vertical burn test that evaluates the flame propagation and reports the melting/burning behavior. A common test requirement for rail applications, the Federal Railroad Administration has a limit of 4” of flame propagation on an 18” test specimen.

ASTM C 1166 Test Results:
As expected, BISCO HT-800 silicone foam passed the 15 minute burn with flying colors:

• Thin (approx. 2mm):  average propagation of 1.7”, no melting or dripping
• Thick (approx. 13mm): average propagation of 1.3”, no melting or dripping

As we’ve known, HT-800 and the BISCO HT-800 family of silicone foams; BF-1000, HT-870, HT-800, HT-820 and HT-840 perform very well in burn tests. These Rogers BISCO silicone foams are all UL 94V-0 flame rated. In addition, we did a “solder torch test” on HT-800 (we’ll post a video in a later blog), and HT-800 did not catch fire, drip or melt even with the more aggressive flame.

Stockwell Elastomerics is a Preferred Converter for Rogers Corporation materials, including BISCO silicone products and PORON® urethane foam products. Stockwell Elastomerics maintains inventory of the vast majority of both the HT-800 family and PORON family of products.

For more information about custom cut gaskets, silicone foam gaskets or gaskets and pads made from BISCO silicone foam or PORON, please call Stockwell Elastomerics at 215-335-3005 or complete a contact form for assistance.

BISCO® and PORON® are registered trademarks of Rogers Corporation.