How do you applied a dark stain to birch plywood with geting splotches in it. I used bennet preconditioned, waited 8 hours sanded and applied the stain with a rag and ended up with splotches when I wiped off the excess. I have done it in the past with birch shop grade plywood but cant seem to remember how.
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I would say that the simple answer is in the case of the piece you are working with right now, you don't. Conditioners can only do so much, all you are really doing is sealing the wood a little bit so that it doesn't take as much stain or dye and hopefully it will take it more evenly. But all wood is different and some is going to blotch unless you seal it so much it won't accept any stain.
It is the same reason you have figure in some wood. How do you accentuate figure you like? You use a stain or a dye, because the figured part of the wood will take a different amount of color from the application. Your blotches are caused by the same figure, it just isn't as prevalent, or dispersed in a manner that you find attractive.
Go with dark dye like "Trans Tint". Mist it on in thin layers to get even coverage. Spray a seal layer with shellack and then finish to suit.
There have been several threads on this subect. Search " finishing birch plywood"
thats what I do. I will tint my poly w/trans tint after staining then spray it on to even the stain out. Right now Im working with a expresso stain.
Is the Trans tint an alcohol stain?
Years ago Watco made one I used on Birch and worked very well but the problem is Watco discontinued it years ago.
Its a dye that you can mix in either alcohol or water. Heres some info from Homestead on it
http://www.homesteadfinishing.com/htdocs/TransTint.htm
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