I carved a windsor chair seat out of catalpa – very easy carving, nice smelling, and very nice looking wood. But I’m having trouble sanding the seat smooth. The porous early growth (darker) grain appears to be so weak that it is eaten away below the surface of the lighter, late growth wood, leaving uneven “ridges” on the seat I want to be smooth. I am considering going back to scraping it with a very light sanding, or applying shellac in the hopes that it might stiffen the early growth grain enough to get a good result sanding. TIA for any comments or tips.
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Replies
Is Catalpa even a hardwood? IIRC, Catalpa is a very soft wood with a very fiberous (stringy) grain - sorta like Cottonwood. If I'm right, I doubt if it can be sanded smooth - and certainly wouldn't use it for a chair - lol.
I'm using it for a windsor chair seat, it is 1 3/4" thick. I've made lots of windsor chairs and this wood seems to be strong enough for the seat function because it the seat is so thick. I am beginning to doubt, too, that it can be sanded really smooth. I applied a liberal coat of 1lb super blonde shellac and that didn't seem to help very much.
I don't think I've seen Catalpa since I was a kid in MO in the 50's. We had one in the back yard and when Pop cut it down I seem to remember that the wood was really "stringy".
That's interesting. I bought a dry plank from a sawmill. It was a dream to carve and very light but seemed strong for my pupose. I've read that it doesn't burn well - they say it just doesn't burn and it is rot resistant. It doesn't appear stringy to me like, say, hickory, but it does have some unusual properties. When I was working it, just with hand tools, it smelled like hot day old coffee, and it was a pungent aroma, not really unpleasant but strange. Did you try to split it for firewood when Pop cut it down?
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