Sand Blasting Grades: The most common grades used for Sand Blasting are the medium coarse grades, â?¢ Mesh 30-60 â?¢ Mesh 20-40. Sandblasting is a mechanical process with which the shallower part of a material is eroded through abrasion due to a pressurized abrasive jet. The most frequent application is metals surface cleaning, yet other possible uses include engraving of images on marble, stones and tiles.
