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How long to cure polyurethane finish

Posted by wishfulthinking (My Page) on
Wed, Aug 30, 06 at 18:45


I have repainted a consignment shop dresser and now have on two coats of satin water based polyurethane. Are two coats enough and if so, how long do I need to wait before I bring the dresser inside & start using it? We'll probably have to set a pretty heavy tv on it. Don't want the finish to come off when we move it. Thanks for your help. I did search before posting but didn't see this exact question. Boy, do you folks know a lot about wood!

Follow-Up Postings:

RE: How long to cure polyurethane finish

Look on the can of material for the recomended time. It varies between water based and solvent, and even within a single manufacturer's various types.
For a heavy point load like a TV you might want to wait a week to ensure the material has fully cured.

RE: How long to cure polyurethane finish

Well, I called myself reading the can for that info, but maybe I just missed it. Thanks for your advice and your reply!

RE: How long to cure polyurethane finish

The manufacturer should be able to give you an exact answer. Remember curing times are based on specific heat and humidy that most homes don't have.

I'd wait at least a week, probably closer to two.


RE: How long to cure polyurethane finish

Polyurethane takes about a year to cure completely. But that doesn't mean that you have to wait a year to use it. You could put a wood or cork pad under the tv set. I have some 8 inch diameter cork on masonite pads, under flower pots. They work great.

RE: How long to cure polyurethane finish

A week or two for waterborne polyurethane is just about all the time you will need to wait. Still...protecting the finished surface to keep it looking good is a good thing.

RE: How long to cure polyurethane finish

In my experience, the water based product is not as 'hard' as the resin based. Should the finish get a little 'dull' try some polishing compound (not rubbing compound) from a auto paint supply store. I have re-polished my round oak table a couple of times and it looks really great.

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