Waterlox / Air Bubbles

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Forum topic by handystanley posted 12-15-2013 09:06 PM 1596 views 0 times favorited 1 reply Add to Favorites Watch
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169 posts in 2906 days

12-15-2013 09:06 PM

Topic tags/keywords: waterlox air bubbles question

Last night I applied the fifth coat of Waterlox on a walnut bathroom countertop that I am building / finishing. I have applied the Waterlox per the instructions using a natural bristle brush and I did not shake the can in the process – if anything I may have smoothly rotated it. When I checked the backsplash this afternoon I noticed a number pin size air bubbles.

Regardless on how they got there what should I do now to remove these air bubbles? Should I use sandpaper with a grit higher than 220? Any other suggestions? Thanks!

-- "Projects beget projects and projects beget the need to buy new tools and that is what the cycle of life is all about." Stan Pearse, Novato, CA

1 reply so far

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208 posts in 1745 days

#1 posted 12-15-2013 10:23 PM

Let the last coat cure thoroughly, then slice the bubbles off with a sharp card scraper. Smooth the surface with 220 paper then re-coat.

To avoid bubbles when applying a conversion varnish coating with a brush, try heating the finish on an old coffee maker hot plate. The hot varnish will be much less likely to retain the bubbles formed by brushing.

-- Minnesota Woodworkers Guild, Past President, Lifetime member.

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