Up for sale is a brand new box of genuine 3M Hookit Purple Clean Sanding Abrasive Discs (Series 334U) in P320 grade. Carrying 3M’s signature "Purple" designation, these premium discs represent their highest-tier technology, combining rapid-cut aluminum oxide minerals with an advanced multi-hole layout. The proprietary spiral-pattern hole configuration continuously clears debris from the workspace, reducing loading to extend total disc lifespan up to three times longer than traditional automotive abrasives. Engineered with a durable C-weight paper backing, this P320 medium-grit abrasive is specialized for fine featheredging, final primer preparation, or shaping body fillers before applying a base coat.

Key Features

Advanced Purple Series Technology: Premium engineering delivers 3M's fastest cutting speeds and most consistent scratch patterns across standard auto body repair cycles.
Spiral Dust Extraction Design: Hundreds of tiny, radially spaced holes pull dust away from the panel face without requiring precise backup pad hole alignment.
Load-Resistant Stearate Coating: Formulated with a specialized anti-loading top layer that keeps high-clog primers and paints from melting onto the abrasive grains.
Hookit Hook-and-Loop System: Heavy-grip fabric backing ensures tight adhesion to matching orbital sander pads and allows quick, tool-free disc change-outs.

Technical Specifications

Brand: 3M Marine / Automotive
Product Line: Hookit Purple Clean Sanding Abrasives
Abrasive Code: 334U
Abrasive Material: Premium Aluminum Oxide
Grit Rating: P320 (Medium Finishing / Primer Prep)
Backing Material Profile: Heavy-Duty C-Weight Paper Backing
Bonding / Coating Base: Fully Resin Bonded, Closed Coat Construction
Dust Extraction Pattern: Spiral Multi-Hole System
Attachment Mechanism: Hookit (Hook and Loop)
Sanding Environment: Engineered for Dry Sanding Systems
Standard Box Count: 50 Discs Per Pack
Primary Target Surfaces: Clear Coat, Primer, Body Filler, Fiberglass, Plastic, and Paint

Suggested Downstream Applications

Final Primer Prep: Excellent for treating topcoat areas, sanding out final paint guide coats, and flattening primer surfaces before base coat delivery.
Fine Featheredging: Provides smooth transition tapering on paint repair borders, ensuring clear coats or surrounding primers blend seamlessly without leaving scratch lines.
Body Filler Shaping: Offers high-precision cutting power to true up minor imperfections in fiberglass resin, body filler, or glazing putty.

Please review your orbital backing pad system's size compatibility carefully before finalizing your selection. Feel free to send a message if you have any questions!