What's the purpose of sanding between coats? Is it to make the coating surface rough so the second coat would adhere better or is it to sand off imperfection such as bubbles?
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4 years ago
sanding between coats
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4 years ago
Both.
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" .. to ensure an even finish and proper adhesion of additional coats. "
" Note: For exterior surfaces or for previously unfinished wood, three coats are recommended. "
John T.
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4 years ago
Thanks for quick reply.
I wonder why it mentions "for previously unfinished wood." When refinishing, don't people sand off, completely, previous coating and leave bare wood? How does that differ from "previously unfinished wood"?
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4 years ago
Yes .
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4 years ago
On 3/12/2020 8:53 AM, Jerry Salinsky wrote: ...
A. Not always, no. B. Even if do, if ring porous wood like oak will still be some left in pores. Even if not porous, sanding finished wood rarely leaves anything close to as pristine a surface as new wood. Removing a whole surface layer past the oxidized outer skin like planing a drawer front, say, would be essentially new wood surface.
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