Someone spray painted a mahogany china cabinet! I've had it professionally stripped, but there are still specks of white deep in the grain of the wood. I tried sanding with a medium grade sand paper and that didn't seem to take it out. I also tried sanding with the dremel and that took too much of the wood off! I don't know what kind of chemical stripper would remover it or it would have come out already, wouldn't it? Any advice? Thanks, Lisa