Merit Abrasives 08834173017 Psa Sanding Disc 40 Grit 10 in

Product Description

The MERIT ABRASIVES 08834173017 is a 10-inch pressure-sensitive adhesive (PSA) sanding disc designed for aggressive material removal on stationary disc sanders. Built on a flexible cloth backing with aluminum oxide abrasive, this disc delivers consistent cut at 40 grit — a very coarse grade suited for rapid stock removal, weld blending, and surface prep on wood, metal, and composites. The black disc weighs 0.5 pounds and is part of the PSAAO series. It is installed and changed by tradespeople and fabricators who need a reliable, self-adhesive abrasive that mounts flat and holds position under load.

This disc is intended for use on stationary disc sanders in shop and fabrication environments. At 40 grit, it is well suited for initial material removal passes, leveling uneven surfaces, and removing rust or mill scale before finishing steps. The flexible cloth backing conforms slightly under pressure, reducing gouging on curved or irregular workpieces. No vacuum holes are included, making this a solid-face disc appropriate for machines without dust-extraction platens.

Key Features

• 40 grit aluminum oxide abrasive for fast, aggressive stock removal
• Flexible cloth backing reduces disc cupping and conforms to work surfaces
• Pressure-sensitive adhesive (PSA) mount — no fasteners or clamps required
• Solid face with no vacuum holes suits standard non-vented disc sander platens
• Part of the PSAAO series for consistent abrasive performance across the product line

Compatibility

Designed for use on stationary disc sanders that accept 10-inch PSA-mount sanding discs. Verify platen diameter and PSA compatibility before installation.

Installation Notes

Power down and lock out the disc sander before removing the old disc or installing a new one. Peel the liner from the PSA backing and press the disc firmly onto a clean, dry platen, working from center outward to eliminate air pockets. Inspect the disc before each use and replace immediately if tears, separations, or uneven wear are observed. Follow applicable shop safety codes and always use appropriate eye and respiratory protection when sanding.