Design Guideline

Materials Continuous Operating Temperature Excursion
Temperature Time Hours
Neoprene 220ºF (105ºC) 275ºF (135ºC) 125
    400ºF (205ºC) 24
EPDM 300ºF (205ºC) 350ºF (175ºC) 200
Fluoroelastomer
Viton® (1)		 400ºF (205ºC) 500ºF (260ºC) 1000
    600ºF (315ºC) 48
    700ºF (370ºC) 4
Fluoropolymer [Fluoroflex]™ 600ºF (315ºC) 650ºF (340ºC) 500
    700ºF (370ºC) 75
Aramid Fabric 550ºF (290ºC)    
Fiberglass 850ºF (455ºC)    
Treated Silica Fabric 1100ºF (590ºC)    
Ceramic Fabric 1800ºF (980ºC)    
EFLEX™ Composite Designs up to 1500ºF (815ºC) 700ºF (370ºC) 75

(1) DuPont Tradename
** Excursions at high temperatures will have a detrimental effect
on the useful life of the product.