3M 7010364820 Wetordry 431Q Psa Disc 600 Grit 12 Inch

Product Description

The 3M 7010364820 Wetordry 431Q is a pressure-sensitive adhesive (PSA) coated abrasive disc built for high-quality surface finishing in both wet and dry conditions. The disc uses silicon carbide mineral bonded to a C-weight waterproof paper backing. Silicon carbide cuts finer than aluminum oxide, making it the right choice for final finishing and refining work on painted surfaces, primers, gel coats, metal, and wood. At 12 inches in diameter and 600 grit, this disc is suited to machine sanding applications where a smooth, controlled finish is the goal.

This disc is commonly used in automotive body shops, marine refinishing, woodworking facilities, and metal fabrication environments. Running it wet reduces loading and keeps the cut rate consistent, extending disc life. The PSA backing attaches directly to compatible random orbital and rotary sanders with a PSA platen. Hand-sanding blocks with PSA pads are also supported by the C-weight paper construction.

Key Features

• Silicon carbide mineral delivers a finer finish than aluminum oxide for detail and final-stage work
• Waterproof C-weight paper backing supports wet sanding to reduce loading and improve cut speed
• PSA backing allows fast, secure attachment to random orbital and rotary sander platens
• Runs wet or dry on paint, primer, gel coat, metal, and wood
• 600 grit rating suited for fine finishing and surface prep before topcoat
• 12-inch diameter fits standard full-size sanding machines

Compatibility

Designed for use with PSA-platen random orbital and rotary sanders that accept 12-inch discs. No specific compatible model numbers were provided in the product data.

Installation Notes

This disc is installed by trade finishers, auto body technicians, and woodworking professionals. Power down or disconnect the sander before attaching or removing the disc. Ensure the sanding platen is clean and free of debris before applying the PSA backing to maintain full adhesion. When sanding wet, confirm the tool is rated for wet use before operation.

Technical Specifications

• Mineral Type: Silicon Carbide
• Grit: 600
• Disc Diameter: 12 inches
• Backing Type: C-Weight Waterproof Paper
• Attachment Type: Pressure-Sensitive Adhesive (PSA)
• Application: Wet or Dry
• Package Dimensions: 12.9 x 3.6 x 13.4 inches
• Weight: 0.05 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010364820