Painting Fiberglass hood

WAYNE0 said

First thing to do is let it sit in the sun for a few days. Its to make sure the fiberglass is cured. Here is what i do. I block sand it with 180 or 220 clean it then spray some high build primer on it at least 3 coats. Then block it with 400. Clean it then spray your black. They are never straight. The high build primer acts like a sealer unless you break through.

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I doubt many manufacturers do an oven post cure temperature stepping process. That toughens the resin and it makes a world of difference in the temperature ranges that the part can handle.
Post curing requires a LONG time in an oven, with temperature stepping going both up and down for specific amounts of time and at specific temperatures FOR THAT SPECIFIC resin.
You should be good though.