Preventing Polyester Tooling Gelcoat From Ruining This Part?


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FLD
FLD
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Exactly like that!

The best thing about it is peeling the PVA off after you've taken the mould.  Its really pleasing like picking a scab.
Hanaldo
Hanaldo
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On that plug the PVA didn't actually come off at all. The mould popped off and the PVA is still good for another pull! 
whitecel
whitecel
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Hanaldo (01/07/2014)
I concur ^

This is my latest plug. It's painted in yellow high build primer, so you can imagine how thick the PVA is to make it this colour. 

 


Damn how do you prevent the bugs from flying on to the drying pva?
Hanaldo
Hanaldo
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I don't. Just pick them out with tweezers. It's one of the brilliant things of pva, it has excellent self levelling properties so it will go flat again once you have picked the bug out. But even if you can't, it's not too hard to sand small imperfections like that out of the mould. 
whitecel
whitecel
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Hanaldo (02/07/2014)
I don't. Just pick them out with tweezers. It's one of the brilliant things of pva, it has excellent self levelling properties so it will go flat again once you have picked the bug out. But even if you can't, it's not too hard to sand small imperfections like that out of the mould. 


Lol. Never really thought of that.  When I did pick them out, it left spots where there weren't any pva.  Kept spraying another layer to fill the hole and another bug would fly in a different spot.  Guess I should say screw it and gelcoat over the bugs.  Finish doesn't need to be perfect since the epoxy needs a uv clear coat sprayed over it so I gotta sand and spray it anyway.  Ill give it a shot with the bug son lol....thanks
GO

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