Latex

We build carbon and glass parts using vacuum infusion and do so under
Reusable vacuum bags. Some we make from Silicone and some from Latex.
What I am looking for is a high quality latex that can take higher temperatures and handle epoxy. Currently all I can find is general purpose Latex that all the suppliers stock but I’m looking for something better. I know it exists but I can’t seem to find it.
Any suggestions???