3M Wetordry Abrasive Sheet 401Q – 1000+ Grit for Auto Body Sanding

Overview

The 3M Wetordry Abrasive Sheet 401Q is a professional-grade option designed for auto body sanding and paint finishing. Featuring a fine 1000+ grit range and a tough silicon-carbide mineral, these sheets are built to deliver a balanced blend of cut and control. The waterproof A-weight paper backing supports both wet and dry applications, helping to keep loading to a minimum and maintain a steady, fast cut. Each pack contains 50 sheets in practical sizes for a range of setups, making it a reliable choice for ongoing projects.

Key Benefits

• Versatile: use wet or dry on paint, primer, gel coat, metal, and plastic surfaces.
• Waterproof backing: supports wet applications and helps maintain a faster, cleaner cut.
• Smooth finish: silicon-carbide mineral provides a consistent cut with a refined surface.
• Fine grades: available from 1000 up to 3000 for progressively smoother finishes.
• Multiple sizes: 9 in x 11 in and 5.5 in x 9 in sheets fit a variety of tools and setups.
• Professional use: intended for industrial/occupational settings (not for consumer sale or use).

Real-life Use Scenarios

In a typical auto body workflow, these sheets help prep panels, smooth primer, and refine painted surfaces with a light touch. The waterproof backing makes wet sanding feasible in damp shop environments, while the fine grit reduces the risk of deep scratches and rework. They also perform well on gel coats, plastic bumper components, and metal substrates where a controlled, even finish is desired.

Tips for Best Results

• Choose a 1000+ grit for light to medium finishing tasks and to reduce surface texture before paint.
• Graduate to finer grits (2000–3000) for final smoothing prior to clear coats.
• Use light, consistent passes and keep the surface clean to minimize loading.

Specifications at a Glance

Brand: 3M • Product: Wetordry Abrasive Sheet 401Q • Grit: 1000+ • Backing: Waterproof A-weight paper • Sizes: 9 in x 11 in and 5.5 in x 9 in • Pack: 50 sheets • Note: For industrial/occupational use only.