Medium Coarse 3" 75mm A20 PSA Polishing Disc
Conventional coated abrasives tend to dull quickly in a glass repair operation. 3M’s unique Trizact™ Structured Abrasive Film provides long lasting, consistent cut and finish while minimizing the abrasive disc change-over and slurry clean-up.
Trizact abrasives are made using a process of microreplication, whereby tiny 3D pyramids of fine grade abrasive mineral are uniformly distributed over the surface of the backing. As the top of these pyramids wears away, fresh cutting mineral is continually exposed to ensure a fast, consistent cut rate that easily removes defects such as scuffs, scratches and acid marks on shop fronts, table glass, windscreens, architectural glass and more to leave an extremely fine finish.
Scratched Glass Repair Process
Refine scratches, remove scuffs and acid marks using 3M™ Trizact™ Film Disc (Grades A20) Use the A20 discs to refine the scratches left by the A35 disc. Alternatively, start with the A20 disc to remove shallow scratches, scuffs and acid marks. Apply a small amount of water to start the grinding action. Control the water flow to avoid generating too much heat.
An aluminium oxide disc, Trizact 268XA effectively levels or touches up surface imperfections.
3M Trizact Discs are suitable on all acrylic & polyester solid surfaces including Corian®, Hi-Macs®, Staron®, Infinity®, Formica® Solid Surfacing, Wilsonart® Solid Surface & Freestyle®.
To extend the life of your Trizact Disc wash with water before and after use.