Abrasive structure

The structure of a coated abrasive consists of up to five main components: backing, base coat, abrasive grit, size coat as well as an additional coating.

Backing

The first of these components is the backing. Paper, cloth, plastic films, vulcanised fibre, foam or a combination of paper and cloth are used as backing for coated abrasives.

The backing gives the abrasive very specific grip and adhesion, stretch, tear resistance, tensile strength, flexibility and stability properties.

Base coat

We use only environmentally-friendly, water-soluble binder systems. We mainly use phenol and urea resins, which, depending on application, are flexibilised using different dispersions such as synthetic resins or hide glue. These systems enable us to manufacture very hard, high-performance abrasives on the one hand, as well as highly flexible finishing products on the other.

The base coat is used to prefix the abrasive grits in the required position and distribution on the backing material. Softer, more elastic or harder, tougher binder resins are used depending on the application of the abrasive. The hardness of the bonding agent affects the aggressiveness and the lifetime of the abrasive.

Abrasive grit

Eine wunderbare Heiterkeit hat meine ganze Seele eingenommen, gleich den süßen Frühlingsmorgen, die ich mit ganzem Herzen genieße. Ich bin allein und freue mich meines Lebens in dieser Gegend, die für solche Seelen geschaffen ist wie die meine. Ich bin so glücklich, mein Bester, so ganz in dem Gefühle von ruhigem Dasein versunken, daß meine Kunst darunter leidet. Ich könnte jetzt nicht zeichnen, nicht einen Strich, und bin nie ein größerer Maler gewesen als in diesen Augenblicken.


Garnet

For wood and manual sanding


Emery

For precious metals and fine sanding


Brown aluminium oxide

For metal


Semi-friable aluminium oxide

For metal and wood


White aluminium oxide 

For wood and manual sanding


Zirconia alumina 

For alloy steels


Ceramic aluminium oxide 

For high-alloy steels


Silicon carbide 

For grey cast iron, stone, hard wood, glass and chipboards


Diamond

For stone, concrete, glass, grey cast iron and carbide


Size coat

The size coat permanently bonds the abrasive grits to each other and to the backing material.

Softer, more elastic or harder, tougher binder resins are used depending on the application of the abrasive. The hardness of the bonding agent affects the aggressiveness and the lifetime of the abrasive.

Additional coating