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11
votes
7answers
175k 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 ...
3
votes
3answers
744 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 ...
3
votes
3answers
5k views

For pine shelves, do I need to stain before applying polyurethane?

I built some pine shelves. They're pretty, but I don't want them to darken. I'm told I can apply polyurethane to ensure they stay nice and bright. My question is this: do I need to apply some kind of ...
4
votes
2answers
2k views

Can I apply polyurethane to my hardwood floors in sections?

I have a hardwood floor I've recently finished staining. I'd like to apply polyurethane but I don't think I can cordon off the entire area for the duration. Is it alright to apply the sealer in ...
6
votes
3answers
7k views

What could cause polyurethane to dry with excess gloss?

I'm having trouble with polyurethane (Helmsman semi-gloss) drying much glossier than it should - like an extra-gloss instead of a semi-gloss. I'm using it on stained wood moulding, and when I did the ...
5
votes
1answer
643 views

Why does some polyurethane need to be wiped off, and what happens if I don't?

So, I stupidly applied some polyurethane to my project without reading the instructions on the can. After it was dry several hours later, I finally read the instructions, and to my horror, I saw it ...
7
votes
1answer
5k views

Why do we need multiple coatings of polyurethane?

I just finished my first wood-working project ever, and applied the first layer of polyurethane last night. This morning, it looks beautiful. So I have a few questions: Do I need a second (or more) ...
3
votes
2answers
2k views

Can I use different brands of Polyurethane on a single project?

I was applying Polyurethane to a wood bookshelf that I made yesterday evening. Unfortunately I ran out before I was finished. There is a small area that has not been covered at all and I need to ...
2
votes
1answer
2k views

What should I do about partially tacky urethane finish?

so I've been refinishing an interior bench. The bench had a very old polyurethane/resin finish which I sanded completely off, there was nothing other than bare wood when I stained it. I stained the ...
2
votes
2answers
9k views

How can I clean and dry a lambswool applicator quickly?

I'm refinishing my floor, sanding / stain / poly. One of the most frustrating things is clean up. In particular, the lambswool applicator. It cleans with mineral spirits but it takes forever to dry. ...
6
votes
4answers
19k views

Can I apply water based polyurethane over oil based polyurethane and vice versa?

I can see brush strokes on a dining table from a previous application of polyurethane. I want to sand these and re-apply polyurethane. I do not know whether the previous application was a ...
5
votes
1answer
780 views

How do you finish a polyurethane coat?

I'm building a table and finishing it with a high-gloss polyurethane. I've seen how to apply the poly and what to do between coats, but what do you do after that last coat? Is it done? Do you wet ...
3
votes
3answers
2k views

Is polyurethane too slippery to use as a protective layer on a deck?

I am in the process of repainting my deck. I'd like to have a protective layer (like clearcoat on a car) that will allow easier cleanup, and would help to pretect the new paint. Is polyurethane ...
6
votes
2answers
13k views

If polyurethane is not food safe, why is it used on dining tables?

Why do online sites say that polyurethane isn't food safe, and is there some way I can use it on my kitchen worktop and still be safe? I don't prepare or store food directly on it or use it as a ...
5
votes
4answers
29k 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
1k views

Does No VOC Polyurethane Work Well?

I am finishing a piece of furniture for my home and would like to use a no (or low) VOC (Volatile Organic Compound) product. However, there does not seem to be many on the market. I found one so ...
18
votes
8answers
103k 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 ...