Any one ever have your finish actually blister? I built a bent lamination bookshelf out of white oak and walnut. Applied two coats shellac, followed by two coats brush on lacquer, topped off with two coats of wax. Left the bookshelf in my closed up truck for three hot days only to find blisters formed. Note – the application of the finishes were all over a period of five or six weeks – each finish should have been cured prior to the next finish.
It appears the lacquer is what blistered. Was it the heat or an application error that caused the blisters?
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Steve,
I have to believe it was the heat not anything you did. What a major pain it the butt!!
If this makes you feel any better........
I had just finished doing six coats of varnish on a very large mahogany door in my shop. It was really pretty. I thought........ just put one more coat on (although it really didn't need it). I rubbed the surface out with a 1000 grit Abralon pad, and put a nice flow coat of varnish on. It looked great. After the surface tacked up a little, I opened the back doors to my shop to let it air out well and walked out. This was around 10:30 on a Saturday morning.
I came back in around 3:30 to admire it and the whole bottom rail and part of the bottom panel had blisters and bubbles. My back doors face south and as the sun went over it cast all that strong light on my fresh varnish. Needless to say my weekend became anything but fun.
Lesson learned, don't do THAT again.
Good luck.
Peter
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