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Most are using a product from any local auto store, it is a rubber undercoat and sealer in a spray can.

Erich
 

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Truck bed liner. My painter (streetrodpainter.com) sprayed it on during the body and paint work. It's great.

San Rafael Mike
 

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Typically most I know have done it in the wheel wells only to prevent spider cracks from
rocks thrown up by the tires.

[ July 08, 2002, 07:34 PM: Message edited by: al solomko ]
 

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Discussion Starter #5
Has anyone had any success with using any undercoating on the aluminum panels? Any prep work need to be done to them to have good adhesion? WalMart and a few local auto parts stores have a roll-on truck bedliner that looks like it may work ok. Ideas?

thanks
Chris
 

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Just seal the underside of the body with a good cheap black epoxy rolled on first, then use the truck bed liner only in the fender wells in very heavy application for stone "checking" protection.
I would not use use the liner plastic all over for weight reasons and never over raw fiberglass surfacing.

grumpy
 

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I would NOT recommend the rubberized spray-on undercoat from a can. It provides very little protection and will melt like an ice cube on a hot sidewalk when hit with oil or grease. I got talked into using it on the underside of my aluminum and I've been sorry ever since. Use the bedliner. Mucho better.
 

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grumpy why not over raw fiberglass?

since I have just completed the go-cart stage I am off to body work 101. I would like to have any seen underside of body painted to look a little better than raw.. Like engine bay...

:confused:
 
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