CRL 3M® 4" x 132" Duo-Glass 80 Grit Grinding Belts - 5/Box Glass Pliers Running Tools & Tappers They have a 100 percent

They have a 100 percent polyester backing

Limitations - It is not recommended for structural glazing or insulating glass glazing

just wet the base with coolant or glass cleaner and press onto the glass

but be uniform in construction and edge finish

and similar types of construction joints

CRL 3M® 4" x 132" Duo-Glass 80 Grit Grinding Belts - 5/Box Glass Pliers Running Tools & Tappers They have a 100 percentCloth Backed Belts Can Be Run in Either Direction Three Grits: 80X to 220X CRL 3M Wet Abrasive Belts have a 100 percent polyester backing, so you can use them wet or dry. Available in six standard sizes in grits from 36X (Extra Coarse) to 600X (Super Fine) to fit most any upright belt sanding machine. All Upright Sander Belts come five belts per box, unless otherwise marked. Cork Polishing belts are also available. If you dont see your belt size or