whats the purpose of rubbing compound??

A

acidrane

New member
i had the front end of my car repainted. my cousins and i wet sanded the old paint off then my uncle, primered it, painted it, then applies 3 or 4 coats of clear coat. then we wet sanded with 1500grit. after the grit they went straight to 3M Perfect-ItT Foam Polishing Pad Glaze. when we did it, it looked like it took all the scratches out but then looking at it in sunlihgt, most of the scratches/sanding marks are still there. after the glaze we applied 3m IMG by hand then Zymol polish with a r/o buffer.



i guess my question is, is my new paint ****** up for good or is it salvagable (w/o getting it repainted)??

if we had applied the rubbing compound first, would the scratches/sanding marks still be there?? how can i fix this???



thanx



btw, its a 99.5 audi a4, brilliant black.



vick



mods, sorry if its in the wrong forum.
 
Rubbing compound is just like every other polish. Its designed to remove paint defects, oxidation, and scratches/swirls by removing a certain amount of paint/clearcoat. The difference in polishes and compounds is determined by their aggressiveness.



If you can still see scratches the first polishing step wasn't enough. Usually a pad glaze is a later step. What you guys probably should have done (and this is a guess since I can't see the car) is followed up the 1500 with a 2000 grit, then polished out. Or used a compound specifically for removing 1500 grit sanding marks. Use a slightly more aggressive polish than the pad glaze on a section of the car and evaluate - don't just bang it out hoping the new polish is gonna work. These problems are usually solvable if you use the right product and tools.
 
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