3M Wetordry Sandpaper, 32040, 320 Grit, 9 inch x 11 inch, 5 Pack
3M Wetordry Sandpaper, 32040, 320 Grit, 9 inch x 11 inch, 5 Pack
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Bondo

3M Wetordry Sandpaper, 32040, 320 Grit, 9 inch x 11 inch, 5 Pack

|10 ratings
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Key item features

  • Smooth Finishing: Delivers a 10% smoother finish compared to conventional 3M sandpaper, ideal for refining Bondo glazing and spot putty.
  • Versatile Sanding: Designed for both wet and dry sanding applications, eliminating the need to switch sandpaper during tasks.
  • Durable Abrasive: Features silicon carbide abrasive that self-fractures, contributing to a longer product lifespan.
  • Flexible Backing: Constructed with a durable yet flexible lightweight (A-Weight) paper backing, allowing it to conform to various auto body surfaces.
  • Auto Body Repair: Suitable for non-aggressive sanding and polishing on clear coat, plastic, and metal, including areas requiring hand compounding and dark-colored paints.
  • Waterproof Design: Equipped with a waterproof backing, making it suitable for wet sanding applications on paint, primer, gel coat, and metal.
  • System Integration: Ideal for Step 2 of the 3M Body Repair System, focusing on smoothing and shaping filler before painting.
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Specs

Grit size, 320Sandpaper type, Silicon CarbideRec. use, AutomotiveBrand, BondoSize, 9" x 11"Features, Easy Installation

About this item

Product details

3M Wetordry Sandpaper has long been a great choice for auto repair jobs – there’s no need to spend extra time switching sandpaper between wet sanding and dry sanding. A full range of grades features silicon carbide abrasives mounted on flexible, waterproof paper for consistently excellent results. 3M Wetordry Sandpaper can be used by hand or for machine sanding.
  • SMOOTH BONDO GLAZING AND SPOT PUTTY - 320 GRIT is great for smoothing and refining glaze and spot putty
  • WET OR DRY SANDING - Use for wet sanding and dry sanding without switching sandpaper
  • SMOOTH FINISH - Delivers 10% smoother finish vs. conventional 3M sandpaper
  • LONGER LASTING SANDPAPER - Silicon carbide abrasive self-fractures for longer life
  • GREAT FOR AUTO BODY REPAIR -  Silicon carbide grain is available in a range of grits from 400 grit for 2500 grit for non-aggressive sanding and polishing jobs on clear coat, plastic and metal, including areas that require hand compounding and for sanding dark colored paints
  • Features durable yet flexible lightweight (A - Weight) paper backing to conform to auto body surfaces
  • Available in 9” x 11” and 3-2/3” x 9” sheets for a variety of uses
  • Features Waterproof backing for wet sanding applications
  • Convenient sheet can be used wet or dry on paint, primer, gel coat and metal
  • IDEAL FOR STEP 2 OF THE 3M BODY REPAIR SYSTEM - Fill. This stage involves patching holes with reinforced filler and smoothing and shaping filler before painting
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Specifications

Grit size

320

Sandpaper type

Silicon Carbide

Rec. use

Automotive

Brand

Bondo

Warranty

Warranty information

See item description for warranty information

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Customer ratings & reviews

4.8 out of 5 stars
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Showing 1-3 of 9 reviews

Sep 13, 2026
Reviewer name: Edward
Item details
Size: 9" x 11"
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Can't go wrong with 3M!

Glad Walmart had this item in stock—reliable brand, made specifically for car repair, and competitive pricing.

Incentivized Review
Helpful?2XUK8P9SJTU015787533
Oct 13, 2026
Reviewer name: Phillip
Item details
Size: 9" x 11"
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

works great

Works great as intended.

Incentivized Review
Helpful?2XUK8P9SJTU015787533
Sep 3, 2026
Reviewer name: Natalie
Item details
Size: 9" x 11"
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great for wet sanding

used this as a wet sandpaper and it worked great. held together throughout the job which was some heavy duty fiberglass sanding. definitely recommend!

Incentivized Review
Helpful?2XUK8P9SJTU015787533
Current price is $9.53
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