Recently came across a slab of wormy chestnut and will be making two hall tables. I’m concerned about how to finish given the porous surface left behind by the worms. I would typically use Tung oil or a wipe on poly then wax but if there’s a better process I’d love to know
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I have never put a finish on chestnut but, I can't imagine why it would be any different. What you use depends on the kind of use it will get. There is a wide range of durability between tung oil and poly. For light use, you can use tung oil or danish oil. It will require multiple applications from time to time to keep it fresh. If it were mine, I would apply a coat of danish oil to bring out the color of the wood and then apply either water based poly or oil based poly for durability. Of course, you have the choice of satin or gloss and you can apply any wax you wish to help maintain it.
I had some recently. I flooded it with tung oil as a stabilizer on the spongy / holey side and after a week of drying next to the furnace it felt more solid. Final finish was shellac & wax.
Thanks. I like the idea of the danish oil to bring out the richness and I’ve had good luck in the past with a wipe on poly.
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