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How Best To Remove Fish Eyes in Clear W\Out Repainting?


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Hi Guys - A few weeks ago, I had a buddy paint a fiberglass trunk spoiler for me as a favor, it came out good but has about 20-30 fish eyes in the clear coat. I would like to remove the fish eyes, without sanding and repainting the entire spoiler, what advice can you share? There is a generous amount of clear on the spoiler.

Thanks - Yasin

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Thanks guys, the fish eyes are definitely in the clear (versus the base). When you say sand in an "X"...what do you mean? Can I buy a sanding block and go back and forth or rather across as the spoiler is narrow only 6-8" in width?

 

Based on your responses is it OK to start with 2000 grit wet and see how that goes, as I want to minimize how much clear I cut (versus starting with 1500).

Thanks,

Yasin

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Based on your responses is it OK to start with 2000 grit wet and see how that goes, as I want to minimize how much clear I cut (versus starting with 1500).

 

2000 is pretty fine (that's why we use it last)... Even on a small piece, it could take some time to remove enough clear to make a difference. But - can't hurt - try it with 2000 first if you want. I think you'll find the 1500 first, then 2000 to finish will be the better way to go. Both are very fine grits.

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* cross sand at 90 degree angles. Sand straight up and down, then straight left and right.

 

 

You could try rubbing compound first if it's just the clear coat and probably not that deep. Then polishing compound and you're done.

Ahh cool thanks for the technique.

 

2000 is pretty fine (that's why we use it last)... Even on a small piece, it could take some time to remove enough clear to make a difference. But - can't hurt - try it with 2000 first if you want. I think you'll find the 1500 first, then 2000 to finish will be the better way to go. Both are very fine grits.

Ok will try the 2000 first and if no improvement..I'll crack out the 1500

 

DO I need to use a cutting and finishing compound? If so what do you guys recommend?

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Guest tybee260

To take out 1500-2000 sand scratches, I would use 3M heavy cut compound or Diamond Cut compound with a wool buffing pad, then medium cut meguires with a yellow foam pad, then a fine cut compound or finishing glaze with a black foam pad, then wax. Light colors such as silver or white will be easieist to remove sand scratches and swirls, and dark colors such as black or dark blue, green will be the hardest to remove.

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To take out 1500-2000 sand scratches, I would use 3M heavy cut compound or Diamond Cut compound with a wool buffing pad, then medium cut meguires with a yellow foam pad, then a fine cut compound or finishing glaze with a black foam pad, then wax. Light colors such as silver or white will be easieist to remove sand scratches and swirls, and dark colors such as black or dark blue, green will be the hardest to remove.

Cool thanks! Luckily the color is silver.

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I've always just gone from the 2000 straight to the polishing compound. But yeah probably wasting time starting with 2000. Whenever I try to start with a finer grit to cut corners I find I'm taxing myself by it just taking way longer. You shouldn't have to go over it much with one grit before stepping up, if it doesn't seem to be working then you're starting to high and need to step it down. I'll usually just use 1200 very briefly first to get it all even, and then go to 2000 just to reduce the haze from the 1200 before polishing.

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I've always just gone from the 2000 straight to the polishing compound. But yeah probably wasting time starting with 2000. Whenever I try to start with a finer grit to cut corners I find I'm taxing myself by it just taking way longer. You shouldn't have to go over it much with one grit before stepping up, if it doesn't seem to be working then you're starting to high and need to step it down. I'll usually just use 1200 very briefly first to get it all even, and then go to 2000 just to reduce the haze from the 1200 before polishing.

Excellent..thanks!

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