3M Wetordry Paper Disc 431Q, 180 C-weight, 8 in x NH, Die 800L, 100/Carton, Case of 500

• Adhesive backing provides easy attachment to random orbital sander
• Silicon carbide mineral cuts faster than aluminum oxide and produces a smoother finish
• Strong C-weight paper backing provides durability for either hand or machine sanding
• 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

3M Wetordry Paper Disc 431Q features extra-fast cutting silicon carbide on a strong, waterproof paper backing that gives you superior finishing for both wet and dry applications on a variety of substrates.

Used with water, our 3M™ Wetordry™ discs enable you 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 wood; and can also be used dry for finishing metal and gel coats. The adhesive backing provides easy attachment to a random orbital sander.

We chose silicon carbide, a mineral that is very hard and fractures easily, resulting in freshly exposed sharp edges that cut extra fast and produce a smooth, professional-looking 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 superior finish.

3M™ Wetordry™ products are backed with a 3M proprietary durable waterproof paper backing that supports both wet and dry applications. Lighter weight than cloth, and smooth rather than textured, 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 water to rinse dust away from the workpiece and the abrasive surface.

Trusted 3M Wetordry Quality

The 3M Wetordry Paper Disc 431Q offers reliable performance with the trusted 3M brand. This model features a strong C-weight paper backing that ensures durability for both hand and machine sanding tasks.

Designed for versatility, the 431Q disc comes in an 8 in x NH size, making it compatible with many random orbital sanders. Its adhesive backing allows for quick and easy attachment during use.

Superior Silicon Carbide Cutting

Featuring silicon carbide mineral, the 431Q disc cuts faster than aluminum oxide and produces a smoother finish. This mineral fractures easily, exposing sharp edges that maintain cutting speed and quality.

Ideal for low-pressure applications, this grade excels in paint prep and finishing on wood and metal. While it wears faster than aluminum oxide, it delivers a professional finish every time.

Durable Waterproof Backing

The disc’s waterproof backing supports wet sanding applications, reducing loading and enabling a faster cut. This backing is lighter than cloth and smooth, making it perfect for finishing and paint prep.

Using water with the disc helps rinse dust and debris away, preventing clogging and improving the sanding environment. This feature enhances performance on surfaces like paint, primer, and wood.

Versatile Wet Dry Use

This 3M Wetordry disc can be used wet or dry on various materials including paint, primer, gel coat, metal, and wood. Its versatility makes it suitable for many finishing and prep tasks.

Wet sanding with this disc reduces airborne dust and keeps abrasive points clean, while dry sanding is effective for finishing metal and gel coats. This flexibility adds value to your sanding projects.

Convenient Pack Size Options

The 431Q discs come in a pack of 100 per carton and 500 per case, providing ample supply for both small and large jobs. This format ensures you have enough discs on hand for ongoing projects.

With the 8 in x NH size and adhesive backing, these discs fit random orbital sanders easily, making them a practical choice for professionals and hobbyists alike.