Hi Folks,
I have some very nice curly birch with a beautiful darker heartwood flame that I’m using for a full length mirror frame. I understand that oils will help show off the satin curl of the wood, but I want to keep the wood from getting too yellow. My usual first choice for an oil finish is tung or linseed, but they both can yellow the wood a lot. Is it advisable to use a mineral oil? And if so, can I then put a topcoat of super blonde shellac on this? I wasn’t sure if a) the mineral oil would ever really dry and b) if it didn’t if that would be a bad thing for any topcoat.
Thanks in advance,
Tom
Replies
Tom,
You're right about mineral oil; it's not a drying oil like tung or linseed. Works great on cutting boards or to lube a spray gun, but not as a finish.
There are a few ways to pop the curl on birch (or maple) besides the oil. You can just use blonde shellac if you don't want much color at all; just apply enough coats to build a decent film so the shellac will act as a "lense" over the wood. To add some color, you can use a different grade of shellac, or you can dye the wood. You can also add alcohol soluable dye to blonde shellac and use that for a custom color instead of using orange, garnet, buttonlac, etc. You can topcoat the colored shellac or dye with super blonde shellac to provide the lense that will bring the figure to life.
Dave Haas posted some curly birch cabinets he made and finished on Jeff Jewitt's forum. You can take a look at the cabinets at this link - Curly Birch Cabinets. I asked Dave if I could share his work because I think it's a fine example of a very nice finish on birch. Dave has the finish schedule at this link - Dave's Post (you have to log into the forum to see the picture with the post).
Paul
Paul
You are right he did a nice job really looks good. I have Jeffs books and love to use BLO and Shellac it really shows off the grain easy to use also.
Ron
Thanks for the info. Glad to realize that I actually have a clue about drying oils! It didn't occur to me to simply build up a shellac film, and I agree that putting a little boiled linseed oil on first would be great.
Thanks,
Tom
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