Great stuff, never worked in fiberglass before, was definitely enlightening. I have worked with rubber and plaster molds though so I could definitely follow what was happening. I have a few questions for you.
So the Gelcoat is the first part, what triggers the drying process, is it air?
Do you know which part of the gelcoat dries first, is it the outer part in contact with the mold or the inside?
How long does each step of the process take, including drying time?
Are any of the materials toxic?
I'm assuming the resin mud is to assist in giving the fiberglass something to adhere to, any more beyond that? It's a cold process correct?
I apologize for asking so many questions, maybe there's a link that would sum everything up for me.