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I purchased an antique oak Burl slab table with burl root base and it has been shellac or varnished and it has turned yellow. The Table I have already stripped but I'm not sure how to strip the root that has the bark on it. How to get into the cracks and crevices without ruining the bark.
Sounds like a hard one to have to strip Tina .
Try a long soak on a test patch with Denatured Alcohol and a light brush to move it . keep it wet . Or a long soak and blow it with an air hose off a compressor. Or a water pressure washer if it can be done gentle enough .
Rob
:whs:
If it is shellac, brushing on denatured alcohol (methylated spirits, here in Oz) should be all that's needed to dissolve it; it'll just take time and care. I'd wet an area, perhaps the size of a handkerchief, then go back over it trying to clean small areas, a few inches square, at a time. Work from the top down, so any drips/runs are over areas you haven't already cleaned.
Good luck, I hope you're patient! ;)
I personally don't think it was shellac. Shellac does not tend to yellow with age.
Button , flake and to a lesser amount Blonde shellac starts as an Orange colour through to a paler yellow and has an effect at aggressively colouring the wood with each layer applied . Light pale coloured woods show it right up , Warm red coloured wood get enhanced by it and become richer and it doesn’t become such a problem . Tina B says it turned yellow and it’s an Antique she bought . So she may think it turned that way but it may have been that way from day one ? Or , it could be anything else as well :).