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Hanaldo - 4/26/2020 8:32:20 AM

Orbital air sander will make quick work of it, but I presume you don't have compressor to run it. Electric works ok, but not as good. Bulkier, less power and the dust will kill them pretty quick. 

Gotta be careful with power sanders though, not as easy to get a true flat surface as you might think, takes some practice. I prefer to use them to do the bulk of the work, but always still finish by hand with a block.

+x

 

Hanaldo - 4/26/2020 1:22:44 PM

Random orbital.

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Warren (Staff) - 4/27/2020 12:05:14 PM

Back in the olden days, we used to wet lay old skool polyester based carbon sheets using a brush/roller applied gelcoat.  To avoid visible brush marks, what we used to do is very lightly drag the roller across the surface with a finger stopping it rotating.  That was just enough to skim off the brush strokes. A small flat piece of plastic would likely so the same thing.  That way, in future, you can remove the problem while the gelcoat is wet leaving you less work to do later on.