Thread: Ozuku JNat: problem using shellac

Originally Posted by heirkb

Isn't oil bad for these stones, though? I remember reading that I should try to find something that will not penetrate the stone too deeply. I'm not sure...at this point, I might just buy some urushi...

I think you are getting way too involved in a simple process of sealing stone.
Shellac works just fine, all my stones are sealed with it and have been fine for a year now.
As far as urushi, I doubt you will be able to get it unless there is a vendor in US (have not been able to find onein US). Importing from Japan will probably be impossible, because urushi presents health hasard, it causes severe allergic reactions and it take weeks to cure.