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I've had a lot of people ask me "how come my purpleheart is brown", when they get orders from me. I thought this would be a good forum to point out, that when purpleheart is cut, or resawed thin for you scrollers, it is very non-purple....quite brown and ugly as a matter of fact.
Simply leaving your boards exposed to the air for a few days, oxidizes the upper layer of wood fibers, and it'll purple right up! If you're in a big hurry....set your boards in the sun, and they'll be quite purple in 24 hours or so.
After it's the intensity of purple that you want, do your scrolling, and then be sure and put on a good UV protective finish, to prevent it from changing color even more on you.
Having said that....can someone tell me of a good UV protective finish that you use on your scrollings, so I might pass that info on?
-dirk
www.thinboards.com
(lowest price on the web for thinboards...guaranteed) |
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Dirk, I've had the exact opposite impression from my purpleheart. A 4/4 board that had been sitting for several years in my son's garage before he gave it to me was brown as could be. As soon as I ran it through my planer, it was a beautiful deep purple. After being exposed to air for a while again, it is starting to turn brown again. I used some of it in an intarsia piece and can't tell you what it will look like in a few years after finishing with spray poly. Bruce |
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Cool! Thanks for the info.
I suppose I'd try a marine finish to get the UV protection.
Maybe a little sunscreen? :-)
Jim |
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A little correction is in order. Purpleheart will brown up when exposed to UV rays. Leaving it in the sun will accelerate this process. This also works to darken up cherry if you want a darker finish btw. I've resawn and planed quite a bit of purpleheart and have never had it turn brown. A good UV inhibitor is a clear lacquer such as Deft. Even better is a good Spar Varnish. These will both work very well at keeping the purple color longer. I have pieces of purpleheart finished with clear lacquer that are over 6 years old and are still quite purple. The key is keeping them out of direct sunlight. Kevin |
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