General chip and blemish repair questions
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Thread: General chip and blemish repair questions

  1. #1

    General chip and blemish repair questions

    So my 69 is not the original color. It has been sprayed probably 4 years ago. And it looks pretty good. But there is probably 6 to 8 chips I would like to fix. Then there looks to be some paint splatters. The clear is really shiny and I have had some base coat mixed up thats about as close as I can get.

    I know nothing about paint, except for what I have researched and watched on Youtube. I have base paint and some reducer. Also purchased a spray can of good clear. In all the chip repair videos I have watched they never spray any clear back on. This now has me wondering if I got the correct stuff to do the job.
    If there car was painted with base coat and clear, and they first sand with like 1000 grit. It dulls it up. And I assumed that now all the clear has been removed. But when they use the rubbing compound and buffer the shine returns. How is this? And what if i dont have same type paint job? I also have the terms single stage paint jobs. Is this not a base coat clear coat? Anyone with knowledge please help.

  2. #2
    Join Date
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    Re: General chip and blemish repair questions

    I can offer you some basic advice.
    - If you use #1000 grit (#2000 is more adviseable) and wet sand an area of your clear coat for a few seconds and dry it off, it will look dull.
    This does not mean you have cut through your clearcoat, it merely means you have scuffed the clearcoat.

    In my experience of repearing chips and schratches (I'm in no means a pro), I start with #2000 wet (ALWAYS WET!) sanding , because that will buff out really easily.
    If that doesn't help/fix the problem (like remove the scratch or overspray), you can step up to #1000 grit.
    But here is where it gets tricky, if you don't know how thick your clearcoat is, there is no way for you to know when you will sand through the clear.
    There are specialist tools to measure the clearcoat, but they are very expensive (even if you rent them).

    I do not own one myself, so I get by on my expierience. But in general if you sand for a few seconds (less than 1 or 2 min) with #2000 grit, on most cars you will not cut through the clear. If you go longer that that, the chances are you can cut through, you would be able to see a difference in color/dullness.
    But by that time it's already too late.

    So do this at your own risk.

    Single stage is the old way of painting, wich means no clearcoat is involved. If you sand that, you will see color in you sanding grit or polishing pad.
    If you have a 2 stage (base color + clear), the sludge you see should be milky white.

    Hope this clears some things up for you, i could write alot more, but not sure if it would help you more

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