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 help

Kind regards

Pier

Thanks for answering Hanaldo,

I'm using the lint free solvent application wipes from easycomposites. I hold the wipes onto the easylease container opening and tip it up and down for three times on tree different locations (three times a round surface area) on the wipe. I then buff the easylease onto the glass plate surface making sure to do that with the soaked area only. I can then see that the easeylease is smeared onto the glass so there is a visual confirmation that the product is being applied. Then I wait 20min and I repeat the same process another 5 times at 20min intervals. I would wet the same surface area spot on the wipes and use the same to buff again. This is it, can't be simpler then that one would think...
The easylease that I use worked in other occasions. 50% probability, one release from each new glass plate with the same procedure. The second release was usually not successful any more. I got glass braking off the glass plate and sticking to the composite. Any other suggestions...