675L Electrostatic diamond belts from 3M are a paper backed belt with diamonds adhered to the surface. They are used for a more controlled grind on glass surfaces with a consistent cut rate and surface appearance. They are a finer surface than a the same grit in an electroplated diamond
So much better than silicone carbide belts! Review by Aviva Brandt Foster
Coldwork is so much faster and easier with these belts versus the silicon carbide belts. It makes coldworking so much less onerous when I know I can use one of these.
The downside is they are much, much flimsier than the silicon carbide belts. I have yet to wear one out because they always break on me way before I use one up. (I use scraps for handworking edges so the diamonds don't go to waste, but still less than ideal.)
I'm sure the problem is with my technique and not the quality of the belt but I've never broken one of the silicon carbide belts. (Posted on 5/29/2017)
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