[wayneooo]

how do i make molds, mold release (what is it) i tryed google and couldnt find anything on the subject.what i m trying to do is make a new lid for this casket i should have gotten the split one so the lid opens on either end . so i want to make a fiberglass top cut in half so the back section can open up. so what products do i need cant be to much of a job to do just need to be pointed in the right direction.

[TucsonJay]

Check locally for a fiberglass materials provider. If they are a well-established and experienced business, they can tell you exactly what you need, and how to use it.

[Stick895]

Some guidance, photos and information is also found at http://www.fiberglassforums.com/

[Rod and Custom]

Good old Johnson's Paste Wax is an excellent mold release for fiberglass mold making. I was taught to wax the surface thoroughly, five times. Spray on gel-coat, then lay up enough glass to be rigid. For a one off, 3-4 layers of 1 1/2 oz matt should be enough. A production mold should be much thicker. And it would need extra bracing.

Using this method yields an exact reverse copy of the surface. I tested it once on a door window. The brand and identification etching was perfectly visible in the gel-coat when it was removed.

If you're afraid of trusting just the wax, you can mist on a coat of PVA- Poly-Vinyl-Alcohol. PVA is a water soluable release agent.

This process can be done without gel-coat, by using straight resin. I think the gel-coat is worth the trouble.

I used to manufacture Corvette parts using Feather-Fil as the gel-coat. That made it easier to block sand before painting.

[NEW INTERIORS]

wayneooo...I sent you a PM.... You can also look in my journal I show how I made some fenders from scratch... Use mold release wax...

[NEW INTERIORS]

You can also use what is called PVA mold release... It work's real well also..

[John Se]

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