Blackblast - Coal Slag

Blackblast, a coal slag, is an aluminum silicate blast cleaning abrasive, made from coal slag from coal fired power plants.

Blackblast is available in 3 sizes:

• Utility (#12-40)
• Medium (#20-40)
• Fine (#30-60)

The Utility size is used for the tough blasting job and also when a coarse profile is required.

The Medium size is used for general blast cleaning and repair jobs, and for achieving an average profile.

The Fine size is used for all sort of blast cleaning jobs and on delicate substrates when a smooth finish is required

Technical Data
SiO₂ (Silicon Dioxide, Total) 46.5%
Al₂O₂ (Aluminum Oxide) 22.5
Fe₂O₃ (Iron Oxide) 19.0
CaO (Calcium Oxide) 5.5
LOI 3.0
MgO 1.0
K₂O 1.0
TiO₂ 1,0
SiO₂ (Crystalline Silica) < 0.1

Appearance:
Color: Black
Bulk Density: 90 lbs/ft³
Grain shape: Angular
Solubility: Insoluble
Hardness: > 7 Mohs

Available Sizes and Profiles:
#12-40, provides 3.0 Mil
#20-40, provides 2.2 Mil
#30-60, provides 1,0 Mil

How does BLACKBLAST perform?:
Cleaning rate*
Ranges between 248 – 290 ft/hour
Consumption*
Ranges between 2.1 – 5,1 lb/ft²
*Based on internal company testing trials.

Packaging:
In Bulk
In 50lb paper bags
3000lb supersacs

OPTA MINERALS has production and warehouse facilities in the following locations:
Canada: Waterdown, ON; Brantford, ON; Lachine, QC; Laval, QC; St-Bruno-de-Guigues, QC.
USA: Norfolk, VA; Hardeeville, SC; Attica, NY; Baltimore, MD; New Orleans, LA; Keeseville, NY; Milan, MI; Walkerton, IN; Richfield, OH. Los Angeles, CA.
Europe: Košice, Slovak Republic; Romans, France.