Just checked the paper I was using, its not ceramic, its a sheet of silicon carbide. 3M makes it in 9x11 and smaller sheets. 3M wet or dry is also silicon carbide, but they must not be making it anymore.
This is a bit expensive but if anyone wants to try it, you can get unnamed rolls at McMaster Carr.
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3M Wetordry 431Q Product Details
- Versatile abrasive media can be used wet or dry on a wide range of substrates
- Paper sheet is easily sized according to the task
- Fast-cutting silicon carbide mineral produces a smoother finish
- Waterproof backing supports wet applications for decreased loading and a faster cut
- Use wet to reduce clogging and extend abrasive life
3M™ Wetordry™ Paper Roll 431Q is a silicon carbide Wetordry™ roll constructed on a C-weight, paper backing. It can be run wet or dry for hand or machine sanding a wide range of substrates.
Still a Favorite
Still a favorite among our customers for its reduced clogging, long life and great finish, 3M™ Wetordry™ Paper Roll 431Q is a good general use abrasive for hand or mechanical sanding on a wide range of substrates from paint, primer and gel coat to metal and wood.
Roll 431Q is available in a variety of grades, including 100, 120, 150, 180, 240, 320, 400, 60, 600 and 80
Sharp Mineral for a Smooth Finish
We chose silicon carbide for this 3M product. Silicon carbide is second only to diamond in hardness. This mineral's grain is sharp and narrow and easily fractures. The benefit of this "friability" is that fresh, sharp edges are continuously exposed to the work surface. They cut extra fast and produce a smooth, professional-looking finish. Silicon carbide abrasives are commonly used for low-pressure applications such as paint prep and finishing on wood and metal. While the mineral has a shorter life than aluminum oxide, it produces a superior finish.
3M Proprietary Waterproof Backing
Used dry or with water, our 3M™ Wetordry™ Paper Roll 431Q abrasive enables you to rinse areas of the workpiece and the abrasive during use. This prevents dust and debris from clogging the face of the abrasive and reduces air-borne dust, while cooling and lubricating the workpiece and producing a faster cut. It has the additional advantage of extending abrasive life.
Our 3M™ Wetordry™ Paper Roll 431Q is backed with a 3M-patented durable waterproof paper backing. Lighter weight than cloth and smooth rather than textured, a paper backing works better for lighter applications like finishing and paint prep. At the same time, many of these 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.
Recommended Applications
This versatile abrasive roll is ideal for use on surfaces that tend to generate a lot of dust, such as paint and primer, and can also be used dry for finishing metal and gel coats. In the marine industry 431Q abrasive media is used for sanding old finishes, fine feather edging, and surface work.
Engineered to Improve the Process from Beginning to End
We engineered our 3M™ Wetordry™ Paper Roll 431Q abrasive to improve the sanding process from beginning to end. This abrasive makes the sanding processes easier. It's made to cut fast and endure wet sanding so jobs that generate dust don't fatigue it. It's made to generate a great finish. It's another way that 3M helps you get the most from your operations.
