3M 7010295206 Wetordry 431Q 8 Inch 240 Grit Psa Disc

Product Description

The 3M 7010295206 is a Wetordry 431Q PSA paper disc designed for wet and dry finishing on a wide range of substrates. Built on a C-weight waterproof paper backing, it carries a silicon carbide abrasive mineral that produces finer surface finishes than aluminum oxide alternatives. At 8 inches in diameter and 240 grit, this disc targets final-stage material removal and surface prep work. The pressure-sensitive adhesive (PSA) backing mounts directly to compatible random orbital sanders without separate fasteners. Body shops, marine refinishers, woodworkers, and metal fabricators use this disc wherever a controlled, consistent scratch pattern is required before topcoat or final finishing.

This disc is suited for both professional shop environments and production-line applications where wet sanding is preferred to reduce loading and extend abrasive life. Substrates include paint, primer, gel coat, bare metal, and wood. Running the disc wet flushes swarf away from the abrasive face, reducing heat buildup and extending cut life. Running it dry on machine sanders delivers firm, consistent stock removal. Either method is supported by the waterproof C-weight paper backing, which resists delamination under wet conditions.

Key Features

• Silicon carbide mineral delivers finer finish quality compared to aluminum oxide on paint, primer, and gel coat
• Waterproof C-weight paper backing supports wet sanding to reduce loading and improve cut rate
• PSA backing mounts quickly to random orbital sander platens with no mechanical fasteners
• Rated for both hand sanding and machine sanding applications
• 240 grit targets finish prep and inter-coat scuffing on a variety of substrates
• Versatile substrate compatibility: paint, primer, gel coat, metal, and wood

Compatibility

Designed for use with PSA-style random orbital sander platens accepting 8-inch discs. Compatible substrates include paint, primer, gel coat, metal, and wood in wet or dry sanding applications.

Installation Notes

Ensure the sander platen face is clean and free of debris before applying the PSA disc to achieve full adhesive contact. Power down and unplug the sander before disc changes. When running wet, verify the sander is rated for wet use before operating near water. Dispose of used discs in accordance with local regulations if sanding materials containing lead paint or other hazardous coatings.

Technical Specifications

• Diameter: 8 inches
• Grit: 240
• Abrasive Mineral: Silicon Carbide
• Backing Type: C-Weight Waterproof Paper
• Attachment: Pressure-Sensitive Adhesive (PSA)
• Application: Wet or Dry
• Package Dimensions: 11.3 x 8.9 x 9.3 inches
• Weight: 0.03 pounds
• UPC: 00051144213665

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010295206