2
votes
1answer
62 views

Why did my third coat of polyurethane finish “buckle”?

I'm refinishing a table I built about 10 years ago. I put 2 layers of gloss polyurethane down and sanded between coats. All was fine at this point. I gave it another light sanding and put a third ...
3
votes
1answer
329 views

Can you put a matte polyurethane over a semi-gloss polyurethane to make it a matte finish?

I have a piece of furniture that my mom has painted and she put on a semi-gloss polyurethane finish. It is way too shiny for the type of painting. Can we put a matte polyurethane finish over the ...