3M 7100370179 Stikit Abrasive Sheet 40E 16.5x2.75 in

Product Description

The 3M 7100370179 is a Stikit abrasive sheet in the 521U Series, designed for material removal and surface preparation tasks in professional finishing applications. Running a coarse 40E grit on an E-weight paper backing, this sheet delivers aggressive stock removal suited for initial sanding passes on wood, composites, or substrate prep work. The pressure-sensitive adhesive (Stikit) backing allows fast sheet changes on compatible pad holders without tools, reducing downtime during production runs. Each sheet measures 16.5 inches wide by 2.75 inches long and is sold in quantities of 25 sheets per box.

This abrasive sheet is suited for use with Stikit-compatible random orbital and hand-pad systems in production woodworking shops, auto body refinishing prep, and general industrial finishing environments. The 40E coarse grit is appropriate for heavy material removal, leveling rough surfaces, or removing old coatings before progressing to finer grits. The blue-colored E-weight paper backing provides durability and consistent backing stiffness across the sheet surface during use.

Key Features

• Coarse 40E grit for aggressive material removal and surface leveling
• Stikit pressure-sensitive adhesive backing for tool-free, fast pad attachment and removal
• E-weight paper backing provides firm, durable support during heavy sanding passes
• Sheet dimensions of 16.5 inches by 2.75 inches fit standard Stikit-compatible pad holders
• Blue coloring allows quick visual identification of grit grade on the job
• Sold 25 sheets per box, 125 sheets per case for production-volume purchasing

Compatibility

Designed for use with Stikit-compatible abrasive pad holders and hand-sanding blocks that accept 16.5-inch by 2.75-inch sheets with pressure-sensitive adhesive backing.

Installation Notes

Installation is performed by pressing the adhesive-backed sheet firmly onto a clean, dry Stikit pad holder, ensuring full contact across the sheet surface to prevent edge lifting during use. Remove the sheet by peeling from one corner; residual adhesive on the pad can be cleaned before applying a new sheet. Inspect the backing for tears or delamination before each use and discard damaged sheets. Always use appropriate personal protective equipment, including eye protection and dust collection, when sanding.

Technical Specifications

• Series: 521U
• Product Form: Sheet
• Grit: 40E
• Overall Width: 16.5 inches
• Overall Length: 2.75 inches
• Backing Material: Paper
• Backing Weight: E
• Color: Blue
• Package Quantity: 25 sheets per box
• Case Quantity: 125 sheets per case
• 3M Number: 37211

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100370179