Probably yet another insignificant and un-answer-able question. Very generous Dbakl was kind enough to send me a set of OEM Universal brake shoes, with good pads, gratis. Thanks again Dbakl. I looked at the rubber and thought, hmmm, I might just try de-glazing the pads on the old belt sander and give these a whirl, even though I know they're probably too old and hard to function well.
And then I stopped myself. What do you suppose those funky "fibers" are that they put in those pads? Seeing as how these are from the 60's, do you suppose it could be the dreaded Asbestos like they used to use in automotive brake pads? If so, not sure I want to go to the belt sander with these. Anybody know? Likely not....