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Question: Fixing paint chips; metallic
Hey, all.
I have a metallic silver paint job on my car. It's got some paint chips. I just went through a process of applying touch-up paint, bringing down the dried paint to flush using 2000 wet/dry paper, and finishing with plastic polish. The result is acceptable, both in terms of levelness and shine, but the new paint doesn't catch the light the same as the original; under some angles it's lighter, under some it's darker. Is there anything I can do about this aside from a full repaint? Thanks much! DW |
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In article . com>, DW > wrote: >Hey, all. > >I have a metallic silver paint job on my car. It's got some paint >chips. > >I just went through a process of applying touch-up paint, bringing down >the dried paint to flush using 2000 wet/dry paper, and finishing with >plastic polish. > >The result is acceptable, both in terms of levelness and shine, but the >new paint doesn't catch the light the same as the original; under some >angles it's lighter, under some it's darker. Is there anything I can do >about this aside from a full repaint? You're certainly having much better results than I have :-) On several cars over the years, having different types of paint finish (colors, metallic vs. non, etc) I've never been able to do a scratch or paint chip repair that looks quite right. Basically it comes down to this: whenever I do ANYTHING to the touch-up paint after brushing it on, the result looks worse. My goal is a paint repair which is level with the original finish, has no excess paint blob surrounding, and matches the original at least in color. Perhaps I am expecting too much ... is this possible? Normally I follow the suggested paint sequence: clean away rust and loose paint to bare metal; apply a thin coat of primer, let dry; a thin coat of paint, let dry; a thin coat of clear coat - assuming the defect is thick enough to accept all three. If not, I just use paint. Originally I sanded the pain blob down with microfine paper until it was level and then polished. More recently I've used a product called "Langka" (http://www.langka.com) which is a kind of polish/solvent that removes excess touch-up paint but leaves the cured factory finish untouched. This is very fast, can be done an hour after applying the paint, and there is no damage from sanding. It is also a terrific way to recover from "Oh, ****!!" such as what happens when a drop of paint drips from the brush onto your car. No matter what I do, and using several batches of paint from different sources (factory, Dupli-Color, Plasti-Kote, etc) the painted defect ALWAYS looks darker than the surrounding factory finish. Issues I continue to run into: 1. You can never seem to apply touch-up paint with a brush in layers that match the thickness of factory paint. So when you remove the "blob" to level the repair with the original finish, you end up going so close to the primer layer in your repair that it shows through and you have to start again. 2. Metallic touch-up paint seems to layer when applied, so that only the top surface is the correct color. When you sand or Langka away the top layer, the exposed bottom portion is darker, has few metal flakes in the pigment, and no longer matches. 3. Many recommend a layer of clear-coat if the original finish is of that type. Why, then, does a brush-stroke of touch-up paint match decently, but if I put a brush-stroke of clear coat it top it is now darker the original finish? |
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