|Forum topic by TNWoodwright||posted 05-22-2012 11:12 PM||1171 views||0 times favorited||2 replies|
05-22-2012 11:12 PM
I’m making some windows and frames from cypress. The ones I am matching have been finished with shellac. I hand planed and scraped the frame parts. Well i put the first coat of shellac on a frame piece. When I cam back the thing looked like a plowed field. The grain had raised terribly. So just for more fun I did another with the same results. I’ve used shellac off and on for decades and never seen anything like this. The shellac flakes were fresh, the denatured alcohol was fresh from my industrial suppler. Not a box store. I thought at first it was my alcohol because when I looked at the Material Data sheet it said it was up to 20% methanol.. But i also had a can of zinzzer garnet that was fresh. When I sprayed with it the same thing happened. So right now I have no idea. And add to the mystery. I tried sealing one board with lacquer sealer first then hit with shellac. Same thing but maybe not so bad.
Does outdoor humidity have anything. Its been raining and I know alcohol sucks up water but I figured it would dry so fast it wouldn’t have time to be that bad.
-- If you have a garden, a shop and a library, you have everything you need with apologies to Marcus Tullius Cicero