Products

Sandpaper (sandpaper, emery cloth) is one of the most common types of flexible abrasives. It consists of abrasive grain coated on a paper or cloth backing. Sandpaper is designed for manual and machine processing of metals, wood, and plastics; removing defects and contaminants from various surfaces of any shape; removing old paint and varnish coatings and preparing surfaces for new ones.

Sandpaper is produced in rolls. These rolls are then used to make products such as endless belts, sheets, Velcro discs (Velrco), inserts for sanding pads, and more.

Abrasive grain material

Aluminum oxide (corundum) is the most inexpensive and versatile option. It is most widely used for manual applications, but is also suitable for machine processing. It is produced in a full range of abrasive grains, from coarse to fine. It is primarily used for removing paint and varnish, rust, woodworking, and for light metalworking and surface smoothing.

Ceramic aluminum oxide is a new type of abrasive. Available in medium-coarse and very coarse grits, it offers superior performance in metalworking. Because it is synthetically produced, it has a more uniform grain size. Its self-sharpening effect ensures consistently sharp grains, reducing cutting temperatures and significantly extending the life of the abrasive paper, allowing it to be used to its full potential. Grains with varying degrees of brittleness are produced for different application conditions.

Silicon carbide – most often used on a waterproof base. It has proven itself to be particularly effective for fine finishing of wood, plastic, glass, non-ferrous metals, and sanding paintwork (especially in auto body repair).

Types of backfill

According to the density of the abrasive material, sandpaper is classified as open, semi-open and closed.

Open grit is characterized by a wide spacing between the grains. This improves chip flow and prevents the paper from becoming entangled in sanding debris when processing soft materials.

The choice of filling density should be based on the material being processed and the likelihood of sandpaper clogging.

Bundle

Various types of adhesives are used to hold the abrasive to the tape, and their properties can vary significantly. Some adhesives are waterproof, while others are not. The differences between adhesives are as significant as the differences between abrasives.

Base material

There are two main types of sandpaper backing material: paper and cloth. Cloth backing can be made of cotton or polyester. Other backing materials are also available, including combinations (paper and cloth), vulcanized fiber, and plastic films.

Paper bases vary in density.

• A - approximately 95 g/m²

• B - approximately 105 g/m²

• C - approximately 110 g/m²

• D - approximately 130 g/m²

• E - approximately 250 g/m²

• F - approximately 300 g/m²

• G - approximately 400 g/m².

Fabric bases are marked with Latin letters from F to Z and their combinations.

F, J are flexible bases, X and Y are rigid, Z is heavy, very dense, can be segmented.

Special coatings

Special coatings on sandpaper are designed to increase the service life of the abrasive tool and provide it with additional characteristics that positively affect the grinding process.

Stearate coatings are special coatings. This clogging causes sanding dust to become clogged between the sandpaper grains, causing the paper to lose its cutting properties. This leads to a sharp increase in temperature in the cutting zone and further clogging. A layer of stearate on sandpaper is designed to reduce tool contamination, which is important when processing viscous materials, plastics, and paint coatings.

Multi-bond is also a type of special coating designed to reduce grinding temperatures on stainless and heat-resistant steels and alloys. This, in turn, increases processing speed and extends tool life.

Antistatic coatings are also designed to reduce clogging during mechanical processing of materials that do not conduct electrical current (wood, plastics).