Black Diamond Abrasives
1240
1240 produces a moderate profile and is used for a near white blast. Blast through medium to heavy coatings, heavy rust, and heavy mill scale. 1240 is often used for general purpose repair and maintenance blasting of coated steel surfaces.
Mil Profile: 3.5-4.5
Nozzle (min): 5/16"
2040
2040 is used to remove light rust, mill scale, enamels, and acrylics. 2040 produces a moderate profile and is used for white to near white blast, often for new construction, special maintenance applications requiring reduced profiles, exposed aggregates, bridge maintenance, new structural steel, and more.
Mil Profile: 2-3.5
Nozzle (min): 1/4"
2850
2850 provides similar cutting efficiency as 2040 while achieving the more precise profile of 3060. 2850 is used on new steel or surfaces with light coatings to achieve a moderate to slight profile.
Mil Profile: 1.5-3
Nozzle (min): 1/4"