3M 31491 – 1000 Grit Cubitron™ II Hookit™ Clean Sand Disc (6 in, 50 Pack)

3M 31491 Cubitron™ II Hookit™ Clean Sand Disc (6 in, 1000+ grit, 50 Pack) is a high-performance abrasive designed for ultra-fine sanding and surface refinement in automotive and industrial refinishing processes. Featuring advanced Cubitron™ II ceramic abrasive grain, this sanding disc delivers precise, consistent scratch patterns while minimizing heat buildup and glazing, making it ideal for final finish sanding prior to polishing or coating application. The Hookit™ hook-and-loop backing system enables fast disc changes and secure attachment to compatible 6-inch backing pads. The ultra-fine 1000+ grit provides exceptional surface quality, ideal for fine blending, denibbing, and refinement stages in preparation for final polish or clearcoat application.

Key Features

• Abrasive: Ideal for final finish sanding and surface refinement
• Abrasive: Self-sharpening grain for consistent performance and longer life
• Backing: Allows quick disc changes and secure attachment 6 in
• Diameter: Compatible with standard 6-inch backing pads and sanders
• Design: Reduces heat buildup and glazing during fine sanding 50
• Pack: Professional quantity for collision repair and refinishing work

Frequently Asked Questions

What makes Cubitron II different from regular sandpaper?

Cubitron II uses precision-shaped ceramic grain that self-sharpens as it wears, cutting up to 2x faster and lasting up to 2x longer than conventional abrasives.

How long do Cubitron II sheets last?

Cubitron II typically lasts 2x or more compared to standard aluminum oxide abrasives because the ceramic grain self-sharpens rather than dulling.

How much material is on the roll?

Each roll provides 8.75 yards of 2.75-inch wide abrasive.