I was wondering if someone know if I can pull a vacform styrene parts from a fiberglass mold ?
As you know I'd make the dark helmet dome , and my mold was made from paris plaster with pieces of foam inside to light weight a bit ... but today the mold was broke by the heat ( separate in 2 where I pour the layer of plaster )
So I would like to make it in fiberglass and reinforced with plywood inside the mold to make it lighter and harder than paris plaster ... I have made a silicone negative matrix of my dome when I created it with a plasti-paste shell ( my safe ) and make the corrections with bondo
I don't want to go with ultracal or hydrocal because it's to heavy to put on the vacform table ( only the mold for this dome in paris plaster weigh 60 lbs )
So Can Fiberglass and bondo mold support styrene heat from the vacform ?
Any help please ? ! ?