3M 7000118312 Wetordry Paper Sheet 431Q 9x11 100 Grit C-Weight (50-Pack)

The 3M Wetordry Paper Sheet 431Q is a premium wet/dry abrasive sanding sheet engineered for fine finishing and surface preparation on a wide range of materials including automotive paint, primers, clear coats, wood, metal, and plastics. Designed to be used either wet or dry, these sheets deliver consistent cut and a uniform finish throughout their working life.

Key Features:

• Grade: 100 grit — ideal for medium material removal and surface leveling
• Sheet Size: 9 in x 11 in — standard size compatible with most hand-sanding blocks and holders
• Weight: C-weight paper backing — flexible enough for contoured surfaces while maintaining durability
• Abrasive Type: Silicon carbide mineral — provides sharp, fast cutting action and fine scratch patterns
• Use: Wet or dry — water lubrication extends sheet life and reduces loading
• Series: 431Q — part of 3M's trusted Wetordry line for professional and DIY applications
• Pack Quantity: 50 sheets per inner pack; 250 sheets per case

The C-weight paper backing strikes the ideal balance between flexibility and strength, allowing the sheet to conform to curved and irregular surfaces without tearing. Silicon carbide abrasive grains fracture during use to expose fresh cutting edges, maintaining consistent performance. These sheets are well-suited for sanding between finish coats, removing surface imperfections, featheredging, and prep work before painting or polishing.