3M 7100189990 Psa Cloth Disc 5 Inch P150 Grit Ao

Product Description

The 3M 7100189990 is a pressure-sensitive adhesive (PSA) cloth sanding disc designed for heavy-duty material removal on a wide range of surfaces. The disc uses an aluminum oxide abrasive grain bonded with a resin system that resists heat buildup, extending disc life during sustained use. An X-weight cloth backing provides the structural rigidity needed for aggressive grinding and finishing passes without tearing or edge breakdown. The PSA backing mounts directly to a compatible backup pad or steel platen, making disc swaps fast and clean on the shop floor or job site.

This disc is suited for metal fabrication, woodworking, and general surface preparation work in industrial and trade environments. It handles both wet and dry sanding applications, giving technicians and fabricators flexibility across different workflow conditions. At 5 inches in diameter and P150 grit, it fits finishing and intermediate stock-removal tasks where a controlled cut rate and smooth surface result are both required. Licensed tradespeople and industrial maintenance crews will find it a reliable choice for production sanding lines or bench work.

Key Features

• PSA backing adheres securely to backup pads or steel platens and releases cleanly for fast replacement
• X-weight cloth backing resists tearing and edge wear under aggressive sanding pressure
• Aluminum oxide abrasive delivers fast cutting action and long service life across multiple surface types
• Resin bond system reduces heat damage to the disc, extending overall disc life
• Suitable for both wet and dry sanding applications
• 5 inch diameter with P150 grit for intermediate finishing and controlled stock removal

Compatibility

Designed for use with standard 5 inch PSA backup pads and steel platens used in disc sanders and angle grinder sanding assemblies.

Installation Notes

Ensure the backup pad or steel platen surface is clean and free of debris before applying the PSA disc to achieve full adhesive contact. Align the disc centrally on the pad before pressing firmly to seat the adhesive. Power down and disconnect the tool from its power source before mounting or removing any abrasive disc. Follow applicable shop safety protocols and wear appropriate eye and respiratory protection during use.