Temperature Chart

Temperature ranges are important in picking a gasket

Each elastomer has a temperature range that it works best in. This resource outlines these ranges as well as other useful information. Rubber Fab’s Material Temperature Chart lists temperature ratings in Fahrenheit for Buna, EPDM, FKM (Viton®), Silicone, PTFE, Tuf-Flex®, Tuf-Steel®, Kalrez® and the GYLON® line.

Material Temperature Ratings

Gasket Material Temperature Range
Tuf-Flex®/Ansi-Flex -20ºF to 300ºF (-29ºC to 149ºC)
Tuf-Steel® -320ºF to 550ºF (-195ºC to 288ºC)
Kalrez® -4ºF to 428ºF (-20ºC to 220ºC)
GYLON BIO-PRO® -346ºC to 500ºF (-210ºC to 260ºC)
GYLON® BIO-PRO PLUS  -450ºF to 500ºF (-268ºC to 260ºC)
PTFE -100ºF to 500ºF (-38ºC to 260ºC)
Platinum Silicone -40ºF to 450ºF (-40ºC to 232ºC)
FKM Fluoroelastomer -30ºF to 400ºF (-34ºC to 204ºC)
EPDM (peroxide cured) -30ºF to 300ºF (-34ºC to 149ºC)
Buna -30ºF to 200ºF (-34ºC to 93ºC)