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Old 10-05-2005, 05:35 PM
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Best method of chassis rust proofing

I want to rust proof the chassis on my truck,But whats the best way to go about it?
I've heard undercoating is bad because it flakes off,
Paint......Water gets under it and will rust the metal out...
A new one to me is "Hot-Dip Galvanizing".
Any thoughts about that?

Lastly,whats the best method and cost effictive way to do this with good results?

This is gonna be on a TIGHT budget.....

Thanks.

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Old 10-05-2005, 08:00 PM
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i havent used it but alot of guys are using POR-15, it looks to be the hot set up to me, can even apply it with a brush i believe.
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Old 10-05-2005, 09:38 PM
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Quote:
Originally Posted by oldschoolrods
i havent used it but alot of guys are using POR-15, it looks to be the hot set up to me, can even apply it with a brush i believe.
por 15 is great!! its does the job perfectly.. it must be brushed on last i checked because of the agents in it, if its air born it can get in your lungs and kill you
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Old 10-06-2005, 01:07 AM
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I used Zero Rust. Worked great. You can either paint over it or leave as is. You can get it in bulk or even in spray cans.

Rock on and God bless...

Seņor
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Old 10-06-2005, 06:32 AM
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Assuming you have cleaned most of the rust off the frame already I would suggest Zero Rust followed by their clear coat product called Crystal Clear. I used it on my truck frame and am very happy with it. Application is much easier than por15, it is also less expensive and can be touched up easily if you have to make modifications after the fact. If you are doing a show truck or just have money to p*ss away then I would powdercoat the frame and all the suspension components.
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Old 10-06-2005, 03:14 PM
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Thanks guys. I think i'm gonna have to do this all myself. Unfortunitly,I have to work either in the backyard or in the driveway.
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Old 10-06-2005, 08:01 PM
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Por 15

Have just used POR 15 on my frame...just wire brushed it, washed it off with metal prep, OSPHO'd it, and then painted it with POR 15. Used a foam brush to put it on with...allowed me to get into tight spots and the result was a real smooth finish...looked like it had been sprayed on. You can thin it and spray also but didn't want the stuff on the floor or other things. Watch out for spills, paint on clothes, and consider wearing a pair of latex gloves. Paint is a bummer to get off the skin. Put a piece of searan wrap over paint top, put lid on and stick can in the refridgerator. Keeps the lid from gluing shut and coolness keeps it fresh. Painted my '40 frame, front end steering parts and several other small pieces and still have about a third of a can left. Just use in well ventilated space...garage with doors open. Think the "kill ya" part is overstatement but vent all paints is best option. Will use POR 15 on bottom of car next..after filling holes. One other thing...the stuff appears to be TOUGH!
Good luck....
Sleezie
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Old 10-06-2005, 11:14 PM
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we used por 15 on the rear end, front end, and other misc. parts on the 71 LeMans we did a frame off resto on last year in shop class. That stuff is really tough, and its not tooo difficult to use, just fallow the directions, and those tips on the saran wrap and fridge, we used them, worked out. O and we also go the engine paint kit and painted the entire motor a Pontiac gold, looks pretty sweet, for that either we changed the mix or it was spray-able because we used a gun to do the motor so there were no brush marks on it. There are many different kits you can get from them, i highly recommend it.
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Old 10-07-2005, 11:37 AM
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1-sand blast or wire wheel
2- oshpo
3- clean off ospho with thinner
4- dupont eching primer
5- epoxy primer
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Old 10-07-2005, 11:59 AM
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POR 15 and Rust

RE: epoxy primer on frame...yes it's good but you should top coat it plus IMHO isn't as tough as the 15. But, hey...whatever suits your situation. Another thing I did was took a garden sprayer, poured in a bottle of OSPHO, selected the fan spray tip setting and sprayed all the hard to reach places I couldn't paint. Also, did this with the interior of doors, trunk lid and car body. In some cases you just have to flood the stuff in till you see it run out. Watch out for concrete as this stuff eats into it. Flood & wipe up with plain water if spilled. Use appropriate mask, gloves, and cover exposed skin as this stuff burns and isn't good to inhale. Well vented place is best....I do it outdoors between rain showers...
Sleezie
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