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Old 07-22-2004, 04:54 PM
mop mop is offline
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Unhappy Buffing help

I just painted my car with Crossfire single stage paint. The first time going by the directions said to use 10-12psi and it sprayed rough.. After resanding and spraying at 40psi it came out better. I wet sanded with 2000grit which made it look dull. I read something about the 3m perfect it compound. I got the polish/glaze perfect it compound. Will that work and will my car be shiny? Any help on this would be appreciated.

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Old 07-22-2004, 06:12 PM
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This is what I use:

-2000 grit wet sand
-3M rubbing compound on a wool pad
-3M machine glaze on a foam polishing pad
-3M finishing glaze on a foam finishing pad

After this the paint is super glossy. I use a power buffer. I suppose it could be done by hand, but it will take a long time. I use a pretty slow speed of 1500-2000 rpm.

After the machine glaze the paint looks really good. The finishing glaze just makes it a tiny bit better. So yeah, what you have should work, but I'd start with the 3M rubbing compound first. Note: 3M makes two different rubbing compounds, a regular and a high cut. I use the regular and it works great.
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Old 07-22-2004, 09:03 PM
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I don't know why they put that spray at 10 psi in the tech sheets, it confuses a lot of people. That is the pressure rating at the cap of the hvlp gun which you can't really measure. You still put fairly high pressure going into the gun and the hvlp regulates it down so it is around 10 p.s.i at the cap. If you put only 10 p.s.i in that would explain rough and orange peel finish. I start wetsanding with whatever grit needed to get smooth depending on what the finish is sprayed like, maybe 1000, finer if pretty smooth and dirt nib free. A decent size run, maybe shave first carefully with a razor blade and knock down the run with 600 and then go over with finer grit. Rubbing compound and a wool pad will get out 1000 grit scratches. The trick is to go finer for a smooth scratch free finish. A wool pad and rubbing compound will take out the wetsanding scratches, then you switch to a glaze and a foam pad which will take out swirls and scratches from the compound and wool pad. Hopefully you put on enough paint so you won't buff through, and stay away from bodylines and panel edges when wetsanding and buffing because these areas will burn through quickly.
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Old 07-22-2004, 10:22 PM
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Thanks for the help guys..I tried some of the glaze on a small area of the car...Looks like its gonna work fine. Ill try to look for the compound..I didnt see any..The only rubbing compound i found was by turtle wax and i believe it said not to use a buffer. But thanks for the info it will come in great help.. I will try to post pics in a week or so when im finished.. Thanks again.
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Old 07-22-2004, 10:58 PM
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Don't get the turtle wax stuff. Look under auto paint supplys in your yellow pages. A decent supplier should have a few rubbing compounds and glazes to choose from, something by 3m, mequires and other good products. Some of the bigger napa's and carquests sell body supplies also.

Last edited by kenseth17; 07-22-2004 at 11:03 PM.
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