These products are made of fine weave fiberglass, coated in PTFE TeflonŽ, for easy release. They also have high temperature capabilities.

DATA SHEETS 
Release Ease 234 TFP-1 . Porous, .001. (25m) 04_re_fa.pdf
Release Ease 234 TFP . Porous, .003. (75m)
 
TeflonŽ is a registred trademark of DuPont