3M 7100371969 Sandpaper Roll 180 Grit 2 3/4 in X 45 Yd

Product Description

The 3M 7100371969 is a pressure-sensitive adhesive (PSA) sandpaper roll designed for general-purpose sanding across a wide range of surfaces. The roll measures 2.75 inches wide by 45 yards long and features an open-coat aluminum oxide abrasive bonded to a C-weight paper backing. Aluminum oxide is a hard, sharp, durable abrasive that resists heat and performs well at high speeds. The PSA backing bonds firmly to smooth backing pads without requiring mechanical fasteners, making roll changes straightforward when the abrasive is fully worn. This roll is suited for production and job-site environments where a single grit is used until the abrasive is spent.

This PSA roll is used in woodworking, metal fabrication, auto body, and general finishing applications where 180 grit is appropriate for fine material removal and surface prep. The open-coat construction resists loading, which extends usable life when working softer materials like wood or painted surfaces. The C-weight paper backing conforms well to flat surfaces and provides consistent pressure distribution, making it a practical choice for hand-block sanding or machine-mounted backing pads. It is commonly used by finish carpenters, auto body technicians, and general fabricators.

Key Features

• 180 grit aluminum oxide abrasive for fine material removal and surface finishing
• Open-coat construction resists loading on wood, paint, and soft materials
• PSA backing bonds securely to smooth backing pads without additional fasteners
• C-weight paper backing delivers consistent pressure across flat work surfaces
• 45-yard roll length reduces changeout frequency in production settings
• Single-use PSA adhesive — not repositionable after initial application

Compatibility

Designed for use with smooth-surface PSA backing pads sized for 2.75-inch wide abrasive rolls. Compatible with hand blocks and machine sanders that accept PSA-style sheet abrasives in this width.

Installation Notes

Clean and dry the backing pad surface before applying the PSA roll to ensure a full bond. Peel and apply with firm, even hand pressure to eliminate air pockets. Once applied, the PSA adhesive cannot be repositioned, so align the abrasive carefully before contact. Replace the abrasive when the grit is fully worn rather than attempting to remove and reuse it.

Technical Specifications

• Width: 2.75 inches
• Length: 45 yards
• Grit: 180
• Abrasive Material: Aluminum Oxide
• Coating Type: Open Coat
• Backing Type: C Weight Paper
• Attachment Type: PSA (Pressure-Sensitive Adhesive)
• Shipping Weight: 0.371 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100371969