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3M™ Wetordry™ PSA Paper Disc 431Q

Products
  • Versatile disc can be run wet or dry on paint, primer, gel coat, metal, and wood
  • Waterproof backing supports wet applications for decreased loading and a faster cut
  • Strong C-weight paper backing provides durability for either hand or machine sanding
  • Silicon carbide mineral produces a finer finish than aluminum oxide
 More...
Diameter
Grit
Products Available
Available options:
 Diameter and Grit
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Specifications
Attribute Name
Value
Application
Finishing, Sanding
Attachment Type
PSA
Backing Material
Paper
Backing Weight
C Weight
Brand
Wetordry™
Coat Type
Closed Coat
Color
Black, Black
Diameter
12 in, 8 in
Diameter (Metric)
203.2 mm, 304.8 mm
Equipment - Machines
Random Orbital Sanders
Form Type
Liner
For Use On
Hardwood, Paint, Softwood
Grit
120, 240, 600
Industries
AOEM, Composite, Marine, Metalworking, Paint Preparation, Woodworking
Mineral Type
Silicon Carbide
Position
Better
Product Form
Disc
Sub Industries
Cabinetry, Custom Woodworking and Millwork, Furniture, Metal Fabrication, Primary Wood and Panel Processing
Substrate
Hardwood, Paint, Softwood
Vacuum Support
No
Product Details
  • Versatile disc can be run wet or dry on paint, primer, gel coat, metal, and wood
  • Waterproof backing supports wet applications for decreased loading and a faster cut
  • Strong C-weight paper backing provides durability for either hand or machine sanding
  • Silicon carbide mineral produces a finer finish than aluminum oxide
  • Pressure Sensitive Adhesive (PSA) backing provides easy attachment to random orbital sander

Our 3M™ Wetordry™ PSA Paper Disc 431Q features silicon carbide on a strong, waterproof paper backing to provide superior finishing for both wet and dry applications on a variety of substrates.

3M™ Wetordry™ PSA Paper Disc 431Q
Run wet or dry on paint, primer, gel coat, metal, and wood
Convenient to Use, Excellent Results
Used with liquids, 3M™ Wetordry™ PSA discs enable the user to rinse areas of the workpiece and the sheet during use to prevent dust and debris from clogging the points of the abrasive and reduce air-borne dust, while producing a faster cut at the same time. These versatile discs are ideal on surfaces that tend to generate a lot of dust, such as paint, primer, and gel coats; and can also be used dry for finishing metal and wood. Pressure sensitive adhesive (PSA) backing provides an attachment suitable for high heat and severe disc sanding applications and easy attachment to a random orbital sander. Convenient liners reduce contamination of the disc backing prior to use.

Light, Smooth, Waterproof Backing
Our 3M™ Wetordry™ products are backed with a waterproof paper backing that supports wet and dry applications. Lighter weight than cloth with a smooth coating surface, the paper backing is preferable for lighter applications such as finishing and paint prep. At the same time, many such applications produce a significant amount of dust, clogging the abrasive points and creating an inferior work environment. These effects can be minimized by sanding with liquids to rinse dust away.

Our Fastest-Cutting Abrasive Mineral
Silicon carbide is a very hard mineral that fractures easily, resulting in freshly exposed sharp edges that produce a smooth finish. Silicon carbide products are commonly used for low-pressure applications such as paint prep and finishing on wood and metal. While it wears faster than aluminum oxide, it produces a finer finish.

More Effective Sanding for More Effective Operations
We put plenty of science behind our 3M™ Wetordry™ PSA Abrasive Disc 431Q — and not just to improve your finished work. These abrasive sheets make the entire sanding process easier, from the durability of each sheet during wet sanding to faster cutting to easier buffing for faster production times and less labor cost.

3M™ Wetordry™ Sheet Selection Guide
Still a favorite for their reduced clogging, long life and great finish. Good general use sheet for hand or machine sanding. Can be run wet or dry.

Product ID Mineral Backing Blending Finishing
431Q Silicon Carbide C wt. Paper  
431Q Silicon Carbide A wt. Paper  

Customer Reviews
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Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.


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