I applied 4 coats of clear, waiting 10 minutes in between, but it came out matte looking and it is not smooth. Is it possible to fix this?

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  • This has been asked on here before. Short answer humidity and so many other factors are at play... – Solar Mike Aug 28 '20 at 14:38
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    Hmm.. yeah it did look it. Without seeing it in the metal to be sure that might be the root cause (it doesn't have quite the milkiness I'd expect if it was down to pure humidity), I'd say it's worth a go to wet sand (probably ~1200 grit) try machine polishing up with a gentle cutting compound. – motosubatsu Aug 28 '20 at 14:57
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    Sort of depends how it feels after the 1200, if it is dull but smooth you can go straight to mop-ing and work through a couple of the gentler compounds, but if it's still a little rough a follow up with 2000 isn't a bad idea before moving on to the polish/buff. – motosubatsu Aug 28 '20 at 15:09
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    What you're looking for is something often called a "cutting compound" - many manufacturers will grade them in effectively a "grit" like sand paper is, and the principle is the same as with sanding, start with a lower grit and move up to a higher one for finishing. – motosubatsu Aug 28 '20 at 15:40
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    If you haven't got a suitable machine polisher you'll need to look for something that can be applied by hand Megs Ultimate Compound is a great one for novices, although it might be lacking in outright cutting power for this job, although you could compensate with an additional wet sand with a super high grit (say 2500-3000) if required. It's a great all-in-one since you generally don't need a separate finishing polish step. – motosubatsu Aug 28 '20 at 15:41

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