1 in. X 50 Yd. Shop Roll Cloth Backed Aluminum Oxide Sandpaper

Sandpaper Roll

Whether you are a turner, a carver or just need to sand that certain little spot, you will be raving too if you try these Shop Rolls

This long-lasting, cloth-backed, aluminum oxide material from KLINGSPOR ABRASIVES is specially woven to be extremely flexible yet get you through those situations when you must fold, crimp, and twist your sandpaper to the desired shape.

Aluminum Oxide AO is formed by combining bauxite and other materials by firing them in an electric furnace. The resultant mass is then crushed, and the pieces sifted through successively finer screens to assign a grit size (CAMI grading).  When crushed, the resulting pieces are naturally pyramidal in shape.  Due to the shape and the strength of the materials used in its making, AO is a very durable grain. The grain is worn down during use, sanding finer the longer it is used. So, theoretically, you can start at 80 grit, and after you have worked the abrasive for a while, you will be sanding at 100 or 120 grit. Users take advantage of this characteristic by using the belts on more than one machine (belt sanders or drum sanders) or application.

AO is very tough and durable, as stated above, and is used on bare wood, most metals (especially the steels), leather, and a wide variety of other materials. It is a great general-purpose grain and probably the most common grain seen today.

Cloth Backing

The J Cloth Backing has a slight degree of conformability to it and should be used where a small degree of conformability to the workpiece is needed in belts or sheets.  The J weight backings have flexed versions available that are referred to as J-Flex (JF).  These would be suitable for applications where J is not quite flexible enough.  The most common uses for JF backings are as pump sleeves and for mold sanding belts.

No cotton backings are naturally waterproof.  They may be chemically treated to be waterproof however; If this has occurred, the backing should say waterproof or be marked as W/D or WP.  If you do not see such a marking on the back of a cotton belt, do not run with water or the backing will stretch.

With the advent of the synthetic resins, the productivity and life of abrasives were greatly enhanced.  Resin bonds are phenolic and therefore, offer the grain excellent protection from heat, which in turn extends life.  Most of the abrasives in use today are resin-bonded.  When you do encounter glue-bonded items, they usually fall into the "finishing" category of products as that's where the workload is the lightest and the softer scratch most important.