I've been getting the house ready for painting and like using the
resin fiber sanding discs on a 4 1/2" grinder. That is tough stuff.
Nonetheless it blocks up and you have to change it long before it is
worn out. I've been able to clean it fairly well by sanding some stucco
I have, but there must be some other method or product whose existence
I'm oblivious to. What would that be?
Porter-Cable (IIRC) and others make carbide tools for paint removal.
Rent one and get the job done in a few hours and without all the
aggravation of sanding.
OTOH, if you enjoy frustration keep doing it the labor intensive way.
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