3M 7100098229 Stikita 321U Disc Roll 6 Inch 40 Grit

Product Description

The 3M 7100098229 is the Stikita 321U abrasive disc roll, a ceramic aluminum oxide sanding disc roll designed for paint preparation and body repair work. The abrasive combines premium aluminum oxide mineral with a ceramic grain blend, delivering consistent cut rates across a range of automotive sanding tasks. An anti-loading coating on the disc surface resists clogging from sanding dust, extending usable disc life. At 6 inches in diameter and 40 grit, this roll targets aggressive material removal in early-stage surface preparation. Licensed technicians and body shop professionals are the primary installers of this consumable.

This disc roll is suited for automotive refinishing and collision repair environments, covering paint stripping, surface leveling, and substrate preparation on vehicle body panels. The Stikita adhesive-backed attachment system allows fast disc swaps on compatible Stikita-style backing pads without the use of hook-and-loop hardware or separate disc liners. Discs tear off one at a time directly from the roll, reducing waste and downtime during active repair cycles. This product is sold in rolls and is intended for shop use where high-volume sanding is routine.

Key Features

• Ceramic and aluminum oxide mineral blend for consistent, aggressive cut at 40 grit
• Anti-loading coating resists dust buildup and extends disc life between changes
• Stikita adhesive backing allows fast, tool-free disc attachment and removal
• Liner-free roll design — discs tear off one at a time for reduced material waste
• Paper backing construction sized at 6 inches diameter
• Upgraded resin bond improves disc durability across extended sanding sessions

Compatibility

Designed for use with Stikita-style adhesive backing pads on dual-action and rotary sanders that accept 6 inch abrasive discs in automotive paint preparation and body repair applications.

Installation Notes

This consumable is installed by body shop technicians and automotive refinishing professionals. Before mounting a disc, confirm the backing pad surface is clean and free of debris to ensure full adhesive contact. Replace discs when cut rate drops noticeably or loading is visible on the abrasive surface. Follow shop safety protocols for eye and respiratory protection when sanding painted or primed substrates.

Technical Specifications

• Disc Diameter: 6 inches
• Grit: 40
• Abrasive Mineral: Ceramic Aluminum Oxide
• Backing Material: Paper
• Attachment Type: Stikita Adhesive
• Unit of Measure: Roll
• Package Weight: 4.522 pounds
• Package Length: 11 inches
• Package Width: 8.4 inches
• Package Height: 7.3 inches
• Minimum Order Quantity: 5
• UPC: 051131362005

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100098229