The 3M™ Wetordry™ Tri-M-ite™ Sheet, 413Q, is a silicon carbide, closed coat product bonded with a waterproof resin. It can be used wet or dry for sanding old finishes, fine featheredging, surface work, or last final sanding step before priming.
The 3M™ Wetordry™ Abrasive Sheet 413Q is best suited for metal sanding and finishing thanks to its versatility and fast cutting abrasive material. Its flexible, A-weight paper backing provides smooth operation and durability and can conform to the shape of contoured parts for consistent finishing.