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Old 08-18-2009, 08:50 PM
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Release agent for fiberglass.

Im looking for something I can use to keep the parts I am copying from sticking to the mold, and the mold from the parts I am pulling. Im forced to go low buck so a proper gel coat and release agent arent in the budget. The thing is I have plenty of time but very little cash, and I am looking for an alternative to buying something professional, unless I can get a release agent cheap online somewhere. I dont mind reworking the parts as long as I can get the close to how they are supposed to look. Been wondering about things like cooking oil or heavy car wax for small pieces, but I have doubts about cooking oil.

Im building a dash, other small interior parts, the big end of the project will be fenders, doors, bumpers and a 2nd gen Firebird nose. I know what I am asking and getting into, been building stuff for over 25 years.

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Old 08-18-2009, 09:01 PM
 

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Im really not crazy

I know this sounds nuts but aluminum foil. I have made 4 or 5 new dashes out of fiberglass using it and I do alot of semi hood repair the fiberglass resin wont stick to the aluminum foil unless there is some creasing or it wraps around the foil so take your time and keep it tight but worse case is you take a small pick and pull the foil off. I know its not the most professional method but its cheap, it works, and ive found sometimes its cool to be able to put a sheet on top of the fiberglass if i have to tape it down as well.
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Old 08-18-2009, 10:31 PM
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That is a killer idea! So simple it should be obvious. I'll try that out, maybe some UltraKote from RC planes. Thanks man!
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Old 08-18-2009, 11:39 PM
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Mold release wax is your best bet,And it doesn't cost that much...Wax paper works good too. But not good in a mold.The wax paper work's good if you need to make some flat pieces...


This is what I use..
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Old 08-19-2009, 01:17 AM
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Got an online source for mold release wax? Nobody where I live messes with laying up glass, they just patch boats. They cant imagine why a car would need fiberglass parts.
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Old 08-19-2009, 06:21 AM
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Quote:
Originally Posted by Thumpin455
Got an online source for mold release wax? Nobody where I live messes with laying up glass, they just patch boats. They cant imagine why a car would need fiberglass parts.
Hi Thumpin
I work in the UP fairly regularly and have been able to get FG supplies at the various boat stores. If you can't get a mold release as New Interiors suggested http://www.uscomposites.com/moldrelease.html you can use saran wrap or any plastic sheet that will go in your mold without creasing, although I caution doing this as one little hole can make a mess of your molds. I have used 'Pam' cooking spray on fasteners that I didn't want to stick but never on parts.
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Old 08-19-2009, 06:47 AM
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Try http://www.fibreglast.com

I have bought from them alot with good results.

Mold release wax and PVA mold release is not exspensive. Use what you are suppost to if you want good results without ruining your molds. Tim
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