Cer (Ceramic) abrasives have the longest life and the fastest cutting rate of all abrasives. They ensure an aggressive and consistent cut under moderate to high pressure, as they break down into micro particles, keeping the abrasion surface permanently sharp.

C or D papers, medium and light respectively, are used when some flexibility and resistance are required. Stronger and less flexible than the A and B papers, these types of supports are still chosen for manual work (dry or wet), allowing its usage on many sanding machines, even with medium pressure.

The indicated grits are the most common for the operations in question, but they do not exhaust all available alternatives. We will be happy to help you find the best solution for your case.

The indicated diameters are the most common in the industry. OTA has many more dimensions available, as it produces formats tailored to the needs of its customers.

Disc holes is an important and often neglected topic. The best solution depends on several factors, namely: the disc diameter, the suction system and the holes in the disc pad. Therefore, there is a huge variety of standard solutions.

The backing of the abrasive in fabric (Vel) is the most common application in Europe and is designed to allow the use of discs or sheets on equipment or plates with a Velcro® type system to allow easy, quick and reusable fastening. The type of fabric is always adjusted to the abrasive in question and comes in a wide range of weights and strengths.
There also exist Ad (self-adhesive) and VelE (cloth and foam) fixings.