CRL 4" x 64" 80X Grit Wet Abrasive Glass Grinding Belts - 5/Bx Mirror Cleaners which is normal

which is normal

stress zones become rainbows of color

rubberized

ASTM C-920

For best results

CRL 4" x 64" 80X Grit Wet Abrasive Glass Grinding Belts - 5/Bx Mirror Cleaners which is normalTough, Fast Grinding, 100% Polyester Backed Belts are Long Lasting Variety of Grits are Available from 40X to CORK Stock Sizes (Plus Other Sizes on Special Order)to Fit Virtually All Upright Belt Sanders Selected 3M Brand Belts Also Available CRL Wet Abrasive Belts have a 100 percent polyester backing, so you can use them wet or dry. Available in standard sizes in grits from 40X (Extra Coarse) to CORK to fit most any upright belt sanding machine. All