Diablo Sanding Belts DCB321036S05G 3x21 Inch 36 Grit (Zirconium Blend Endura-Bond Clog-SHIELD 5-Pack Ultra Coarse Heavy Removal Finishing Tool)

Diablo DCB321036S05G 3" x 21" 36-Grit Ultra Coarse Zirconium Sanding Belts 5-Pack

The Diablo DCB321036S05G 5-pack of 3-inch by 21-inch 36-grit ultra-coarse sanding belts strips thick paint finishes, levels uneven subflooring, and executes rapid stock removal across hardwoods, softwoods, metals, and plastics. Engineered with a premium self-sharpening zirconium grain formulation anchored by high-strength ENDURA-BOND resin, these heavy-duty cloth-backed belts deliver fast material removal rates while resisting stretch under high drive tension. Outfitted with Diablo's proprietary Clog-SHIELD grinding agent coating that eliminates pitch buildup and loading during aggressive stock removal, this abrasive belt pack equips deck restoration contractors, flooring installers, and timber framers with long-lasting, tear-resistant leveling performance on all standard 3x21 portable belt sanders.

Best Used For:

• Deck Surface Prep and Paint Stripping: Grinding through multiple layers of weathered exterior deck stain, heavy paint, and mastic without thermal loading.
• Hardwood Floor Leveling and Reconditioning: Rapidly flattening uneven floorboards, cupped subfloor seams, and rough-sawn dimensional timber in initial passes.
• Heavy Stock Removal and Wood Planing: Dimensioning rough lumber, removing deep gouges, and shaping dense hardwoods prior to medium-grit sanding.

Key Performance & Safety Features

• Ultra-Coarse 36-Grit Profile: Provides aggressive cutting action for fast material evacuation, rough leveling, and thick finish removal.
• Premium Zirconium Grain Blend: Self-sharpening abrasive mineral fractures to maintain sharp cutting facets, significantly outlasting standard aluminum oxide belts.
• Clog-SHIELD Anti-Loading Technology: Proprietary blend of grinding lubricants prevents resin glazing, dust loading, and pitch buildup in softwoods.
• ENDURA-BOND Thermal Resin Matrix: High-strength grain bonding system locks abrasive particles securely to backing cloth to prevent grain shedding under severe heat.
• Heavy-Duty Industrial Cloth Backing: Rugged woven cloth resists edge fraying, tearing, and lateral tracking deflection during high-torque sanding passes.

What's Included

• (5) Diablo DCB321036S05G 3" x 21" 36-Grit Ultra Coarse Zirconium Sanding Belts

Technical Specifications

Pro-Tip: When removing thick exterior deck paint or leveling cupped floorboards with this 36-grit belt, sand at a slight 15-degree angle across the wood grain on your first pass; this cuts through hardened coatings and high ridges much faster before making a final parallel pass with the grain.