It has aluminum oxide in it. That's an abrasive.
I've found wrapping some bronze wool around a brush to also be quite effective.Plastic Iosso or Montana Extreme plastic brush with Fine Bronze wool wound in the bristles
Very, very worn bronze bristle brush with Fine Bronze Wool wound in the bristles.
It would probably take years of use before anything of value was abraded away.............. it would be nice to know the particle size just for kicksWell... I was wrong!!!
Depends. Wash them out with carb cleaner, maybe able to wind more wool in them...I've found wrapping some bronze wool around a brush to also be quite effective.
Do you try to reuse the brush/wool after using? They get really crudded up.