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1991 Z28 underbody rust, just bought it...need help!

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Old 06-11-2005, 04:02 PM
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Call a paint center in your area.
Old 06-13-2005, 12:42 AM
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ok, i spent a whole day sanding and this is the result, smooth rust. Tomorrow im gonna por15 it....any tips would help

guess its a little too late for a 56gay (56k modem ) warning..












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Old 06-13-2005, 08:39 AM
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Car: 91 Formula, 95 GT
Engine: 5.7, 5.0
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Axle/Gears: 3.42:1, ???
Originally posted by KagA152
batteries in camaros are on the passenger side, birds on the drivers
not true. My 91 bird has the battery on the pass. side. I think if you have TPI you get the battery on the drivers side.
Old 06-13-2005, 12:39 PM
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What i thought also
Old 06-13-2005, 01:06 PM
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Car: 91 GTA
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Dan that looks pretty good!. If you go to your local auto parts store you can get a product called Surface Prep. I would spray the spots you are going to paint with it. This will help to remove any residue you have. It looks as if you have used some type of cleaner, but it left some run marks streaming away from the affected area. This tells me there might be some dirt and possibly moisture still lingering. Other than that I personally would have no reservations using POR15 or any other similar product. After I used POR15 I used a spray on bed liner to coat the underside of my car. That stuff is pretty tough and it looks pretty good if you mask everything off.
Old 06-13-2005, 06:16 PM
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yeah, i sprayed some carb cleaner on it to try to clean away the dust....what should i really be using to clean it?
Old 06-13-2005, 09:17 PM
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Car: 91 Camaro RS 383
Engine: carbed 383
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Axle/Gears: 3.42 posi
when you get the por-15 get the metal ready that goes with it. You hose the floor off then spray the metal ready on and let it sit. After 10-15 minutes you hose it off and let it dry then paint.
Old 06-13-2005, 11:49 PM
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****...too late, lol. I just got done brushing on loads of por15
im gonna go another coat 2morrow then do a coat of underbody spray
Old 06-14-2005, 04:46 PM
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ok, ive done 2 coats of por15, the bottle says i have to sand it down a bit if i want to do a topcoat...is that true?
Old 06-14-2005, 04:53 PM
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Dan just read the directions geeze lol jp if I used por 15 before ide tell yah.
Old 06-14-2005, 04:58 PM
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well the thing is, its gonna be a b*tch to sand it all down, im wondering if i can just spray undercoating on there with no worry...
Old 06-14-2005, 05:04 PM
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I wouldnt put no undercoating over it it should be good.
Old 06-14-2005, 05:08 PM
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For top coat it might mean you can most likely paint over it would be nice to por 15 the whole underside and paint red over it.
Old 06-14-2005, 05:14 PM
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well por15 cant be exposed to light and i know the bottom of the car wont see light, but i want to be extra safe from rust in the future, im undercoating the whole bottom of the car. i like the bottom of cars to be black
Old 06-14-2005, 05:23 PM
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Isnt the por 15 black? I undercoated mine I just dont like it I rather paint it with some por 15 or poxy primer but now since im redoing it im just painting it body color.
Old 06-14-2005, 05:25 PM
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i used clear por15. Ive already started undercoting it, what a mess.... get on AOL or msn plz
Old 06-14-2005, 05:31 PM
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Cant im at work you should of used the black stuff.
Old 06-14-2005, 05:36 PM
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my dad needed the black stuff, so i used the clear, plus i wanted to see if the rust would get worse with por15...i can see thru it
Old 06-14-2005, 07:34 PM
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j00der?
Old 06-15-2005, 08:15 AM
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Originally posted by DanTheMan_smlk
i used clear por15.
clear por-15? never heard of it. Is it the same as the black stuff?
Old 06-15-2005, 08:54 AM
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Car: 91 GTA
Engine: 377ci
Transmission: T56
Axle/Gears: QP Ford 9" 3.70s
I used black and I painted over it without sanding. Given I used truck bedliner. It has held tough for 4 years now. Actually trying to remove it is quite a pain. I added some exhaust hangers at the beginning of this season, and a torch, sand blaster and scraper was needed. I am pretty sure if the metal disappeared I would still have a floor.
Old 06-15-2005, 01:09 PM
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yeah, i think they have different colors of por15. the clear just loks like a shiny laquer. its pretty cool, if u dont trust por15, u can use the clear stuff and inspect it regularly to see if its rusted further.ive put 2 coats (4 cans ) of rubberized underbody coating...it looks real nice, im very proud. It looks like a brand new car underneath i'll get pics soon
Old 06-22-2005, 11:17 PM
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by the way, i do have cruise control, i used it today

Last edited by DanTheMan_smlk; 06-22-2005 at 11:58 PM.
Old 09-08-2005, 08:42 PM
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Car: 1989 Camaro IROC-Z
Engine: L98 350 TPI
Transmission: Built TH-700 R4 (Vilgilante 2800)
Axle/Gears: 9 bolt w/ PBR's
Originally posted by DanTheMan_smlk
yeah, i think they have different colors of por15. the clear just loks like a shiny laquer. its pretty cool, if u dont trust por15, u can use the clear stuff and inspect it regularly to see if its rusted further.ive put 2 coats (4 cans ) of rubberized underbody coating...it looks real nice, im very proud. It looks like a brand new car underneath i'll get pics soon
You get pics of this yet?

Kevin
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