CRL 3M® Trizact® 3" A35 PSA Polishing Disc Circular Saw Blades They have 100% polyester backing

They have 100% polyester backing that lets you use them wet or dry

For Cutting Heavy Gauge Metals

Formica tops

Tool is machined from one piece anodized aluminum for reduced weight

All glass dust is pulled from the seamer and into the filtered dust collection bag

CRL 3M® Trizact® 3" A35 PSA Polishing Disc Circular Saw Blades They have 100% polyester backing3M Trizact A Cleaner, Long Lasting Abrasive System for Glass Scratch Repair Starter and Professional Kits are Both Easy to Use Several Grades Available CRL introduced 3M Trizact Abrasive Film to the glass industry. This material uses natural abrasive formed in the shape of small pyramids, and provides uniform layers of abrasive throughout the pyramid. As abrasive particles are exposed and used, they fall down and are flushed away between the pyramids.