3M 7100373233 Psa Sandpaper Roll 120 Grit 2.75 in X 30 Yd

Product Description

The 3M 7100373233 is a pressure-sensitive adhesive (PSA) sandpaper roll designed for general-purpose sanding across a wide range of surfaces. It features an open-coat aluminum oxide abrasive bonded to a C-weight paper backing. The PSA backing creates a firm, immediate bond when pressed onto a smooth backing pad. Because the adhesive cannot be reapplied after removal, this roll is best suited for applications where a single grit stays loaded until the abrasive is fully worn. The aluminum oxide mineral is sharp, hard, and heat-resistant, making it effective at consistent stock removal even at higher speeds.

This sandpaper roll is used in woodworking, metal fabrication, auto body prep, and general surface conditioning. It is well suited for stationary or handheld sanding tools fitted with smooth PSA-compatible backing pads. At 120 grit, the roll is appropriate for intermediate finishing passes — removing scratches left by coarser grits and preparing surfaces for final finishing or coating. Trades that commonly use this format include finish carpenters, auto body technicians, and general fabricators working in shop environments.

Key Features

• Open-coat aluminum oxide abrasive resists loading on wood, metal, and composite surfaces
• PSA backing bonds firmly to smooth backing pads without mechanical fasteners
• C-weight paper backing delivers a flat, consistent surface for even pressure distribution
• 120 grit provides intermediate cut suitable for scratch removal and pre-finish surface prep
• Single-use adhesive backing makes this a reliable choice where grit changes are infrequent
• 30-yard roll length reduces changeover frequency in production or repetitive sanding tasks

Compatibility

Designed for use with smooth-surface PSA-compatible backing pads on handheld or stationary sanding tools. No specific compatible model numbers were provided in the product data.

Installation Notes

Ensure the backing pad surface is clean, dry, and free of debris before applying the PSA roll to maximize bond strength. Cut the roll to the required length before peeling and pressing firmly onto the backing pad to eliminate air pockets. Do not attempt to reposition or reuse the abrasive once the PSA backing has made contact. Wear appropriate eye protection and dust collection or respiratory protection per applicable shop safety guidelines when sanding.

Technical Specifications

• Width: 2.75 inches
• Length: 30 yards
• Abrasive Material: Aluminum Oxide
• Grit: 120
• Backing Type: C-Weight Paper
• Attachment Type: PSA (Pressure-Sensitive Adhesive)
• Coat Type: Open Coat
• Shipping Weight: 0.28 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100373233