Powerblast – Staurolite

Powerblast is a staurolite containing less than 1% crystalline silica. It’s hardness and fine grain size make it ideal for new steel and mill scale removal, or any general blasting application with low to average surface profile requirements.

Powerblast LS staurolite

Advantages of Powerblast – Staurolite

  • High productivity (cleaning speed)
  • Recyclable
  • Superior white metal finish
  • Low dusting
  • Non-hygroscopic
  • Crystalline silica levels are less than 1%

Available Sizes and Profiles

Size Profile
1.0 – 2.0 Mil

Technical Specifications

Symbol Name Percentage
(Staurolite) 81 – 86%
(Tourmaline) 7 – 10%
TiO2
(Ilmenite/Rutile/Leucoxene) 5 – 15%
ZrO2
SiO2
(Zirconium Silicate) 1 – 2%
(Kyanite/Sillimanite) 0 – 2%
SiO2 (Silica, crystalline quartz) 0 – 1%
U (Natural Uranium) *
Th (Natural Thorium) *
*Combined natural Thorium and Uranium levels are less than 0.05%.

Characteristics

Colour: Dark reddish brown
Bulk Density: ~130 lbs/ft3
Specific Gravity: 3.7 – 3.8
Grain Shape: Sub-angular
Solubility: Insoluble
Hardness: 7 – 7.5 Mohs (see our hardness index)

Typical Sieve Analysis

U.S. Mesh Microns Per Cent Retained Per Cent Passing
20 850 0.0 100.0
30 600 0.0 100.0
40 425 0.0 100.0
50 300 0.0 100.0
70 212 7.8 92.2
100 150 54.0 38.2
140 106 35.1 3.1
200 75 2.9 0.2
270 53 0.2 0.0
PAN 0 0.0 0.0

Powerblast XC Staurolite - Typical Sieve Analysis

Packaging

  • 50-lb. bags, 60 bags/pallet
  • 3000-lb. Super Sacs
  • In bulk; in blower truck or Rail Hopper Cars