Hi folks,
Im currently doing some infusions at between 25-40 deg C and curing at that temperature but then de-bagging and post-curing at just under 200 deg C. Ideally, I would keep the vac applied after initial curing at 40 deg and during postcure to minimise distortion. The tool is steel and the part is carbon so I emphasise ‘minimise distortion’ as the part does come out oversize. The one shot process will also save labour time!
So, Im looking for infusion materials to take 200 deg C without going on fire/melting the bag. Has anyone tried just infusing with standard room temp materials (ie mesh, spiral, fittings, even MTI) and allowing them to melt at the higher temperature during postcure? Melting is fine, burning is not 
Nothing is going to burn at 200 C, except if you use paper in it.
I went up to 180C several times. I use a PP flow media then instead of a PE. MTI will not be the problem if you start to increase the temperature after initial cure. The PE spiral wil melt but that is not the problem after the part is infused.
Ah ok thanks, thats good to know about MTI. I know things arent going to burst into flames at 200C but is more a case of melting and causing other problems such as bag bursts, localised high temps on the carbon, etc