Questions tagged [polyurethane]

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5
votes
3answers
66k views

Why did polyurethane make wood feel coarse?

I have a piece of pine I want to use for shelving. I added some finish and then added a thin layer Minwax Fast-drying Polyurethane (clear semi-gloss) with a foam brush. It looks great, but the wood ...
3
votes
3answers
2k views

What is the proper way to clean a paintbrush and metal pan with KleanStrip paint thinner?

I am finishing my hardwood floors tonight with an oil-based polyurethane. I bought a natural bristle paintbrush and a metal pan, as well as some KleanStrip paint thinner that is "made with Mineral ...
2
votes
1answer
869 views

What caulk to use for basement leaks at cove joint where floor meets the wall? Polyurethane, silicone, or latex-based Drylok?

I noticed a small moist patch of the floor near a radon mitigation system. However, I suspect that it has little to do with the radon system but was due to failed caulking at the cove joint, as there ...
25
votes
13answers
225k views

What grit sandpaper should I use between coats of polyurethane?

I'm planning on applying polyurethane to a pine bench I've finished staining. I decided on foam brushes for application, but I wasn't sure what grit sandpaper I should use between coats. Is 400 good ...
21
votes
8answers
527k views

What is the proper procedure to apply multiple coats of Polyurethane?

Polyurethane is confusing me. ;) I'm finishing a table top with polyurethane. I've sanded down the original finish to bare wood down to 220 grit paper. I vacuumed and wiped it all down, then did a ...
7
votes
5answers
166k views

Why is my desk still tacky two weeks after finishing it with a polyurethane clear coat?

I've recently built a standing desk out of sandply with a mahogany veneer. I have stained it, and two weeks ago added a polyurethane clear coat to protect the stain. However, after doing this, the ...
4
votes
1answer
2k views

How should I sand before the final coat of polyurethane?

I have applied 3 coats of poly so far. I'd like to smooth out the surface before the final coat. What type of sander should I use: Square Buff Floor Sander , Random Orbit Floor Sander , or just a ...
1
vote
4answers
432 views

Oil- or water-based polyurethane to refinish stair banister?

I didn't know that water-based polyurethane was available as an alternative to oil-based until I saw it today at the store. I am refinishing a vintage stair banister and some surrounding trim. I ...