whats the best tech on rust bubbles?

1558 Views 9 Replies 7 Participants Last post by JunkYardFrog, Dec 18, 2002

IHAVECHEVYPARTS

Discussion Starter · Nov 19, 2002

i know i need to use a wire wheel and get rid all all remaining rust and take off all remaining soft metal.then i would prime and fill with fiberglass bondo then smooth with bondo then sand. whats better and would guarantee no spots after final paint????

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[email protected]

· #2 · Nov 19, 2002

Use Por15 or some other rust converter to be sure all the rust is totally killed B4 bondo and paint.

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Norwegian

· #3 · Nov 19, 2002

I read that rust-killers needs some remaining rust on the metal in order to stop it. Is that a fact?

Pettersen

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TurboS10

· #4 · Nov 19, 2002

The rust converter I have used do need rust to react with. In changes it to a hard primer like coat.
If you have totally removed the rust, and have got the front and back side perfectly clean, I would just glass over it from the back. It will seal it all up. Follow with a good primer and paint or undercoating material.

Chris

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[email protected]

· #5 · Nov 19, 2002

Turbo is right IF you get the metal PERFECTLY clean. Only additon I would make to his formula is I would paint the bare metal with a ligtht coat of acid etching primer B4 adding the bondo. Primer bonds better to the metal and bondo bonds better to the primer.

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TurboS10

· #6 · Nov 19, 2002

Good point willys. A quick pass with 36 grit will also remedy the bondo adhesion problem. I always at least use some 80 to rough things up...40 or 36 if I have it handy.

Chris

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Maverick

· #7 · Nov 19, 2002

www.zerorust.com this is what Iam useing as my first coat to bare metal. Then primer/sealer then paint. Probably will do the bondo/fill thing after the primer/sealer. This stuff is a lot easier and safer then POR 15.

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Maverick

· #8 · Nov 19, 2002

www.hotrodscustomstuff.com/RumblinRag-06.html

Check this out! This will kinda show you how its done, give ya a good idea any way. Theres a bunch of build ups on this site to check out.

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Kevin45

· #9 · Nov 20, 2002

Best bet and for a permanent fix would be to cut out the rust and weld in a patch.

Kevin

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JunkYardFrog

· #10 · Dec 18, 2002

Originally posted by TurboS10:
<strong>The rust converter I have used do need rust to react with. In changes it to a hard primer like coat.

Chris</strong><hr></blockquote>

hmmm

I hope you don't mind a dumb question. What exactly is rust converter?

The reason I ask is that one of my sons just bought a '62 Chevy pickup that's about 75% truck and 25% rust.

Would this stuff help? I told him I thought he needed to sand everything down to the metal, but I've never actually done any of this myself.

Any advice would be greatly appreciated.

Thanks.

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