Dynabrade 89243 Abrasive Belt 3-1/2x15-1/2 in Aluminum Oxide

Product Description

The DYNABRADE 89243 is a non-woven aluminum oxide abrasive belt designed for use with compatible belt sanders and finishing tools. Measuring 3-1/2 inches wide by 15-1/2 inches long, this coarse-grade belt is built on a scrim backing that holds the abrasive matrix together under load. The non-woven construction allows for consistent stock removal and surface conditioning without loading up the way coated abrasives can. Wet and dry operation is supported, making it suitable for both dry grinding passes and wet finishing work where coolant or water is applied. Weighing 0.19 pounds, it is a direct drop-in replacement belt for compatible Dynabrade tools.

This belt is used in metal fabrication, surface prep, and finishing applications where a consistent, controlled scratch pattern is needed. The coarse grade makes it well suited for weld blending, rust removal, and initial surface conditioning on steel, aluminum, and similar materials. It is typically installed by metalworkers, maintenance technicians, and industrial finishing pros on belt-type pneumatic or electric sanders. The wet and dry rating adds flexibility in shop environments where coolant or cutting fluid is part of the process.

Key Features

• Non-woven aluminum oxide construction for consistent surface conditioning
• Coarse grade for aggressive stock removal and weld blending
• Scrim backing provides structural support under tension
• Rated for both wet and dry operation
• 3-1/2 inches wide by 15-1/2 inches long for direct tool fitment

Compatibility

Designed as an OEM-style replacement belt for compatible Dynabrade belt sanders and finishing tools that accept a 3-1/2 inch by 15-1/2 inch belt size.

Installation Notes

Belt replacement on pneumatic and electric belt sanders should be performed with the tool disconnected from the air supply or power source. Verify belt tracking alignment before resuming operation to prevent premature edge wear or belt failure. Always confirm the tool platen and contact wheel are free of debris before seating the new belt. Follow applicable shop safety protocols and wear appropriate PPE when operating abrasive tools.