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Water based urethane, how many coats to get a great finish???

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Forum topic by Michigander posted 767 days ago 2071 views 0 times favorited 7 replies Add to Favorites Watch
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Michigander

133 posts in 1015 days


767 days ago

My cherry TV cabinet staining came out well. I have put 5 coats of General Finishes High Performance Polyurethane on it and it looks great. How many coats should I put on for the best protection, without becoming visible (as in plactic looking).
Thanks,
John


7 replies so far

View Clint Searl's profile

Clint Searl

1380 posts in 957 days


#1 posted 767 days ago

You’ve already gone two coats more than needed. Why more?

-- Clint Searl.............We deserve what we tolerate

View Milo's profile

Milo

849 posts in 1915 days


#2 posted 767 days ago

I agree with Clint. Three coats should usually do the trick.

Remember to give the finish time to cure before you put anything on it! It takes time, up to 30 days.

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

View Lee Barker's profile

Lee Barker

2163 posts in 1446 days


#3 posted 767 days ago

What sheen?

I use GF WB Semi Gloss poly on my instruments. I’ve found that the build doesn’t really show any depth until I get to 6 or even 7. I use a Gramercy brush from Tools for Working Wood= and it’s worth every penny. I get a thin coat that’s very even. Recoat in 2 hours.

I let it sit a week before I rub it out. This particular procedure, for both bodies and necks, has evolved over the years and acts just like I want it to.

I hope this helps, though it is not a direct answer to your question.

Kindly,

Lee

-- "...in his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

View Michigander's profile

Michigander

133 posts in 1015 days


#4 posted 766 days ago

Sorry for the delay in getting back here; been away from the computer. Thanks for the input guys, the sheen is is satin and I am pretty satisfied with the way it has turned out. For the box components I am less concerned with getting depth but more bruise protection. As this is a TV cabinet, components will be slid on the shelves and cables bumping around etc, so I want to protect from that. As for the top, I would like the protection as well as depth as the top will be solid cherry.
Thanks for your input.
John

View killerb's profile

killerb

150 posts in 994 days


#5 posted 766 days ago

More coats will not make the finish harder. It just makes it thicker. As the others have said, 3 is fine. bob

-- Bob www.bobkloes.com

View Michigander's profile

Michigander

133 posts in 1015 days


#6 posted 764 days ago

Thanks Guys, appreciate the help.
John

View Arvid's profile

Arvid

17 posts in 1607 days


#7 posted 764 days ago

The number of coats really depends on the application method. With a brush, I usually stop at three as mentioned above, but it I spray or wipe on a finish I normally go higher. The other thing to mention when using water based urethane, I normally start with a base of dewaxed shellac for color/warmth then at the urethane for protection.

-- Arvid, Washington DC

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