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watsonrx13's Avatar
 
Join Date: Dec 2001
Location: Plant City, FL
Posts: 49
Clean paint before painting

What are you guys using to clean the paint before painting? I'm specifically looking for something to clean underneath the fenderwells, behind the bumpers and in the trunk floors. There's alot of road grime that is almost 'baked on'. Currently the only way I've found to completely remove it is to remove the paint, using aircraft stripper.

-- Rob
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Rob Watson
Red '74 2.0l
Old 05-11-2006, 11:57 AM
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Location: Silver Spring, MD 20904
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Pressure washer.
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Stephen
70 914/6, GT clone, 3.0L
83 911SC, IROC clone, 3.32L, EFI
84 930, 3.5L
Old 05-11-2006, 01:10 PM
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go to one of those self serve car washes, no mess to clean up afterwards. And you can get newcar scent for it too
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Donnie

Currently Porsche-less.....
Old 05-11-2006, 02:18 PM
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I have found what I believe is the simplest and most time preserving way to acomplish this task.
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Pay someone else to do it.....

Twystd1
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I probably know less than you.....
Old 05-11-2006, 02:24 PM
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Thanks for the recommendations guys, but I forgot to mentioned that the pressure washing was the first thing I tried, with out the results expected. Unless someone knows a less corrosive solution than the aircraft stripper, I guess that's what I'll use...

-- Rob
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Rob Watson
Red '74 2.0l
Old 05-11-2006, 03:33 PM
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nylon wheel, or wire cup brush?
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Donnie

Currently Porsche-less.....
Old 05-11-2006, 03:52 PM
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If it is truly caked on then you need a combination of aggressive solvents, and mechanical agitation. I've found that Castrol Super Clean and a stiff wire brush work well. If its too hard for a wire brush, then chisel away at it with a scredriver or something. I had a transmission where the gunk had petrified and the only way to get it off was chiselling it off.

Brake cleaner works well too.

I just recently prepped my engine bay for paint. There was a lot of oil and gunk, but it wasn't baked on. except for a couple spots. I used Super Clean and it came out nicely. I also sanded it down to bare metal in many places, and in the other places, just down to primer. I probably spent 20 hours on the prep work alone.

-Tony
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70 914 EJ25 - Body by Karmann, Engine by Fuji Heavy Industries
Old 05-11-2006, 03:58 PM
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Location: Lake Oswego, Oregon
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2nd on the Castrol Super Cleaner. I use it all the time on 914s. Spray on and leave for about 10 minutes then I would come back with a strong spray and brush. If that doe's not satisfy you then spray and then use a pressure washer.
If you are still not satisfied check your local CL or phone book for a soda blaster, some will have a portable setup.
CCL
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Craig C. Laughlin CAMP 914
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Old 05-11-2006, 04:06 PM
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