I bought a set of Beall buffing wheels used. Well the turner had loaded the wax wheel with Tripoli. Looking at the Tripoli wheel I’m guessing it was used for wax. With 80 grit sandpaper and got most all of the Tripoli removed. I also used sandpaper to clean the other two wheels. I am speculating the white diamond was not contaminated with any other compound, but the Tripoli wheel was likely used for wax. The picture below is the wax wheel after the sandpaper. cleaning. Still it has an indication it had Tripoli on it.
The question is this sufficient or do I need to go further with the cleaning. I’m guessing the wheels could be machined washed. Suggestion/comments?

The question is this sufficient or do I need to go further with the cleaning. I’m guessing the wheels could be machined washed. Suggestion/comments?

