These coarse grit, waterproof abrasive belts are especially suitable for thick glass. They contain silicon carbide abrasive particles in a hollow spherical compound which break up during the grinding process. Coarse grits (up to 120) have a synthetic support material; fine grits (150 and above) have a cotton support material.
Application note:
Our practical tip: As the peak-to-valley height changes slightly in the course of the service life, we recommend grinding in beforehand.