I usually sand the area lightly then wipe it with thinner to make sure it is clean. You can not use regular body filler for plastic work it will sluff off. I use "Evercoat" brand "Plastic Works VETTE PANEL ADHESIVE/FILLER" this is the best for molding plastics. It mixes and works just like bondo. (Evercoat part #100870)

I would also drill a few holes in the area to be molded to so the filler can be pushed through to the back side for more strength.

I hope this helps.

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Thanks Thunder, I took the wire wheel to it, made the sanding job much easier

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Without Inno there can be no Innovation!

inno73@hotmail.com

I agree with the holes dilled in the plastic. SEM makes a 'plastic bondo' too.

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Blow your mind - PORT your box!

if I vinyl these I'm not as concerned with lifting, but if I get brave and decide to paint, I need something that will no lift. I prepped the plastic by taking a wire wheel to them, they are nicely grooved now. even so, some of the initial fiberglass lifted off. So no, when I get the the finishing I need to make sure it won't crack and lift. What is the best prep for wiping any impurities of the plastic befor bondo'ing. I guess I'll pop by the paint supply shop before work tomorrow

There's a product called Rapid Prep that beats any prep fluid for painting hands down.

I use this stuff on all surfaces before I apply graphics, and it really gets the gunk off and leaves no film or residue behind.

Check out www.rapidtac.com
The site isnt working tonight for some reason but maybe it'll be goin by the time you check it out.

Look for rapid prep and they have a list of suppliers where you can get it.

Actually, ask 'em for samples and use your business name. They'll send you a 4 ounce sample of each of their products.

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Mike Pipes
Digital Illusion Custom Graphics