I' m currently making tensile test samples for Unidirectional (UD) Prepreg. Therefore, I need to fabricate a 1mm thick unidirectional sheet. I used two glass plates that sandwich five layers of UD Prepreg and are vacuum baged and cured in the Prepreg oven at 100°C (see attached pic). The two glass plates were treated with six layers of Easylease coated with a 20min. separation between each coating. However, I still have the problem that the Prepreg sticks to the glass. I cannot manage to take the Prepreg sheet off the glass without braking the glass or the prepreg sheet (see attached pic). I tired this several times already. Any Idea how to resolve this? What about trying to use PVA or wax as a release agent, instead of Easylease?Looking forward fot some helpKind regardsPier
+x Hanaldo - 1/2/2018 7:02:48 AMYeh the residue would have transferred to the pre-preg.I think this will be the issue. It's a bit of a strange one, as it doesn't always cause problems. It's a bit like rushing the application and just doing 5 coats one after another. Sometimes it works fine, sometimes you will get sticks. It's quite amazing that a product that works so well can be so finicky to apply, but you have to remember that it is actually a resin. When you try it again, if you accidentally over apply it and notice it streaking again, don't worry too much - just wait a few seconds and then gently wipe over it again with a clean lint-free cloth to spread the film out.