3M™ Wetordry™ PSA Paper Disc 431Q
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Details
Highlights
- 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
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.
Run wet or dry on paint, primer, gel coat, metal, and wood
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 | • |
Typical properties
| Abrasive Material | Silicon Carbide |
| Application | Finishing, Sanding, Surface Preparation, Deburring, Cleaning |
| Attachment Type | PSA |
| Backing Material | Paper |
| Backing Weight | C Weight |
| Brands | Wetordry™ |
| Coat Type | Closed Coat |
| Equipment - Machines | Random Orbital Sanders, Hand Sanding |
| For Use On | Softwood, Paint |
| Grit | 120, 240, 600 |
| Industries | Composite, AOEM, Metalworking, Marine, Paint Preparation, Woodworking, MRO |
| Maximum Speed | 2000 rpm, 2500 rpm, 6000 rpm |
| Number of Vacuum Holes | 0 |
| Product Color | Black |
| Product Form | Disc |
| Sub Applications | Blending, Orbital Sanding, Paint Stripping, Coating Removal |
| Sub Industries | Furniture, Primary Wood and Panel Processing, Cabinetry, Metal Fabrication, Custom Woodworking and Millwork |
| Vacuum Support | No |
| Overall Diameter (Imperial) | 8 in, 12 in |
| Overall Diameter (Metric) | 203.2 mm, 304.8 mm |
Resources
Safety Data Sheets
Document Number: MSDS_0889634_US_EN
(PDF)
Large Volume Order
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For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
