3M 7000120332 Abrasive Disc 180 Grit 8 Inch Wet Dry

Product Description

The 3M 7000120332 is a coated abrasive disc designed for wet and dry finishing work across a wide range of substrates. Built around silicon carbide mineral on a C-weight waterproof paper backing, this 8-inch disc runs at up to 6,000 RPM and delivers an extra-fast cut with a consistently smooth surface finish. The pressure-sensitive adhesive backing attaches directly to random orbital sanders, making changeovers quick on the job. At 180 grit, it falls in the fine-finishing range, suited for final stock removal and surface prep before topcoat or polish. Installers and finishing techs working in automotive, marine, and woodworking environments will find it equally capable in both wet and dry conditions.

This disc is used in applications where surface finish quality is critical and loading is a concern. Running it wet reduces disc loading and extends cut life, making it practical for paint, primer, gel coat, and bare metal work. It is also effective dry on wood and composite surfaces. The 8-inch diameter fits standard random orbital and rotary sander platforms that accept PSA-mount discs. Its waterproof backing allows repeated exposure to water and lubricants without delamination or backing failure.

Key Features

• Silicon carbide mineral cuts faster than aluminum oxide and leaves a finer surface finish
• C-weight waterproof paper backing supports both wet and dry sanding without delamination
• Pressure-sensitive adhesive mount for quick attachment to random orbital sanders
• Reduced loading in wet use extends working life of each disc
• Compatible with paint, primer, gel coat, bare metal, and wood substrates
• 180 grit provides fine finishing and surface prep before topcoat

Compatibility

Designed for use with random orbital and rotary sander platforms accepting 8-inch PSA-mount abrasive discs. Suitable for wet or dry use on paint, primer, gel coat, metal, and wood surfaces.

Installation Notes

Mounting and disc changes should be performed with the sander powered off and unplugged. Ensure the sander backing pad is clean and free of debris before applying the adhesive disc to achieve full contact and prevent premature release. When running wet, verify that the sander is rated for wet use before introducing water or lubricant. Do not exceed the 6,000 RPM maximum speed rating of this disc.

Technical Specifications

• Grit: 180
• Disc Diameter: 8 inches
• Maximum Speed: 6,000 RPM
• Abrasive Mineral: Silicon Carbide
• Backing Type: C-weight waterproof paper
• Attachment Type: Pressure-sensitive adhesive (PSA)
• Application: Wet or dry
• Weight: 0.03 pounds
• UPC: 00051144213467

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000120332