PVA release agent - how long before applying epoxy gelcoat?

Author	Message
Hanaldo	Hanaldo posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	No time limit as such, you just want to apply it before it gets covered in dust or other possible contamination, and beware of the PVA shrinking in places and cracking or pulling away from the surface. Other than that, you could apply the gelcoat 6 months later and it wouldn't be a problem.
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Christian_83	Christian_83 posted 9 Years Ago HOT Topic Details
Group: Forum Members Posts: 5, Visits: 70	Hi Guys Im trying to make a mold of an existing part /that i use as a plug) Ive given the part 5 times of carnauba wax and then 2 coats of PVA (20 min cure between layer) I didn't have the time to put on the epoxy tooling gelcoat. So my question is, will the PVA still "work" if i put on the epoxy tooling gel coat in 24 hours? or will i need to put on new PVA? Is there any reason with applying more than one layer of PVA (to be sure that all corners and fed ) ? Cheers Christian
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