One of the ways the 3M™ Cubitron TM II Hookit TM Clean Sanding Abrasives 737U increase production quality is by utilizing 3M TM Precision-Shaped Grain (PSG) technology. PSG is engineered so that as it ...

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3M’s Cubitron™ abrasive, ceramic chips electrostatically oriented to point out from the backer. Source: 3M So an abrasive needs to both be harder than the intended substrate and present ...