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Poly over lacquer question

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Forum topic by ellen35 posted 04-27-2018 11:43 AM 682 views 0 times favorited 8 replies Add to Favorites Watch
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ellen35

2742 posts in 3851 days


04-27-2018 11:43 AM

I made 3 serving trays and put a brush on Watco Lacquer on them. The lacquer is streaky and nasty along the edges with some buildup that I couldn’t really get clear. Right now they are 24 hrs after the 3rd light coat and still look streaky with bad corners and edges. I started googling poly over lacquer and the answers vary from absolutely not to sand and do it, no problem. I think the brush on lacquer is just too thick and drys too fast to get good even brush strokes, even with thin coats. I bought a new can and it was thinner but still the same problem.

I am planning to sand the trays down to 220 (maybe start at 120?) and start applying poly to them. I really don’t want to sand to bare wood although that’s probably the best method.

Has anyone ever tried scuffing the lacquer and then applying poly? I’m just not up for starting all over if I can help it.
How about wipe on poly? There is a coat of sanding sealer as the base coat. Any advice would be much appreciated!!!

-- "Don't let the perfect be the enemy of the good." Voltaire


8 replies so far

View mahdee's profile

mahdee

4291 posts in 2186 days


#1 posted 04-27-2018 12:02 PM

Hi Ellen,
I did that by mistake and so far so good. I made a table for my daughter and sprayed it with lacquer and went on with other projects. A few days later, I sprayed the table with poly by mistake. It has been a couple of years and no problems so far. In your case, I would sand it with 220 and use a rattle spray can of lacquer. Deft is the best if you can find it. A few thin spray should do it.

-- earthartandfoods.com

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ellen35

2742 posts in 3851 days


#2 posted 04-27-2018 12:07 PM

Did you mean spray with poly?
I’m done with lacquer. I’m going back to my good old General Finishes poly for my work.
My spraying skills are worse than bad…I have no experience and don’t want to “learn” on a good piece.
Thanks for the info. Glad to hear it can be done.
Ellen

-- "Don't let the perfect be the enemy of the good." Voltaire

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mahdee

4291 posts in 2186 days


#3 posted 04-27-2018 12:13 PM

No, I meant lacquer spray can. It is not that hard at all to spray it and there are no learning curves; think of it as brushing it with a spray can :). I do like poly better than lacquer as well; only if it would dry as fast as lacquer.

-- earthartandfoods.com

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HerbC

1801 posts in 3278 days


#4 posted 04-27-2018 01:18 PM

Apply a coat of dewaxed shellac over the lacquer and once it’s dry you can safely apply the poly…

Herb

-- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090

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ellen35

2742 posts in 3851 days


#5 posted 04-27-2018 04:37 PM

Herb,
Bingo! It’s not only logical but it worked!
Thank you so much for your help.
Ellen

-- "Don't let the perfect be the enemy of the good." Voltaire

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HerbC

1801 posts in 3278 days


#6 posted 04-27-2018 05:25 PM

Glad it worked out for you. Look forward to seeing your project.

Herb

-- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090

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Woodknack

12842 posts in 2799 days


#7 posted 04-27-2018 05:28 PM

When I use brush on lacquer, I sand the first coat smooth then slap on a few more coats, sand them smooth, and buff out the final coat to whatever sheen I want. Basically I mostly worry about the first and last coat.

-- Rick M, http://thewoodknack.blogspot.com/

View Joe Lyddon's profile

Joe Lyddon

10645 posts in 4471 days


#8 posted 04-27-2018 07:29 PM



Herb,
Bingo! It s not only logical but it worked!
Thank you so much for your help.
Ellen

- ellen35


I think the denatured alcohol in the Shellac could have smoothed-out the previous lacquer problem too…

Lacquer, like Shellac, combines the previous Finish with the current one being applied… Applying a thinned-down coat of Lacquer could have also probably solved the problem. Sometimes when the weather is very HOT, lacquer finishes do strange things while drying TOO FAST.

Glad you got the problem FIXED! :)

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: https://www.ncwoodworker.net/forums/index.php

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