3M 7100032536 Wetordry File Sheet 413Q 400 Grit

Product Description

The 3M 7100032536 is a Wetordry abrasive file sheet designed for wet or dry sanding applications in automotive bodywork and surface preparation. Measuring 3.67 inches x 9 inches and rated at 400A grit, it delivers fine, consistent abrasion suited to the final stages of paint prep. The 413Q backing tolerates water exposure without delaminating, making it equally effective for wet sanding passes or dry finishing runs. Body technicians and automotive refinishers reach for this sheet when the work calls for controlled material removal with a smooth surface result.

This sheet is sized for use with standard file-style sanding blocks common in automotive collision and refinish shops. It is well matched to fine featheredging at paint edges, leveling primer surfacer, and the last dry-sand step before spraying sealer or topcoat. At 400 grit, it removes 320-grit scratches and leaves a surface ready for primer or finish coats. It can be used with water and a lubricant for wet sanding or run dry on softer substrates.

Key Features

• 400A grit abrasive for fine material removal and smooth scratch patterns before priming
• 413Q backing withstands wet and dry sanding conditions without deteriorating
• 3.67 inches x 9 inches format fits standard automotive file blocks
• Suitable for fine featheredging, paint-edge blending, and pre-primer finishing
• Sold individually (each); minimum order quantity of 100 units

Compatibility

Designed as a standard file-sheet-format abrasive for use with automotive sanding file blocks that accept 3.67 inches x 9 inches sheets in refinish and collision repair applications.

Installation Notes

Load the sheet onto a compatible file block before use and confirm it seats flat without buckling. For wet sanding, keep the surface and sheet lubricated throughout the pass to prevent loading and uneven scratching. Allow the surface to dry completely and inspect scratch depth before moving to the next operation. Dispose of worn sheets before they begin to skip or glaze, as degraded abrasive leaves inconsistent scratch patterns.

Technical Specifications

• Grit: 400A
• Sheet Size: 3.67 inches x 9 inches
• Backing Series: 413Q
• Weight: 0.01 pounds
• UPC: 00051144107131
• Unit of Measure: Each
• Minimum Order Quantity: 100

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100032536