Staurolite is a general-purpose mined mineral abrasive used to remove thin coatings, rust, and mill scale. Its sub-angular shape is ideal for applications where a minimal surface profile is required. Staurolite is excellent for achieving a near white finish and is commonly used for new steel applications; including storage tank & tower construction, structural & plate steel blasting, and steel fabrication.

Common Uses:

  • Manufacturing/Maintenance, bridges, blast rooms
  • Pipelines, oil refineries, rail yards, ship yards
  • Storage tanks, water towers, blast yards


Shape: Subangular
Hardness: 7.0 Mohs
Bulk Density: 136 lbs./cu.ft.
Specific Gravity: 3.6-3.85 g/cc
Free Silica: Less than 1% to 3%
Type: Mined Mineral
Recyclability: Medium
Surface Etching: Varies

Packaging Options

Bulk Trucks: Available
Drums: 4000 lbs.
Bags: 50 lbs.

Recommended Blasting Conditions

Nozzle Pressure: 100-110 psi
Distance from Surface: 18-36 in.

  • Starblast™ Coarse
    Starblast™ Coarse is a general-purpose abrasive used to remove heavy paint film or creating a deeper profile.
    Grit size: 30/60
    Typical Profile: 2.5+ mils
  • Starblast™ Ultra
    Starblast™ Ultra is suited for more aggressive applications, such as heavy rust and thick paint removal.
    Grit size: 30/80
    Typical profile: 2.3 mils
  • Starblast™ & Starblast™ XL
    Starblast™ is a general-purpose staurolite abrasive typically used to remove rust, mill scale, and old coatings. Guaranteed to contain less than 3% free silica, and Starblast™ XL with less than 1%.
    Grit size: 54/90
    Typical profile: 1.5–2.4 mils
    QPL approved for MIL-A22262A-SH
    California Air Resources Board certified (Starblast™ XL)
    Passes SSPC AB-1 (Starblast™ XL)
  • Biasill™ & Biasill™ XL Staurolite
    Biasill™ Staurolite is slightly finer than Starblast™, making it ideal for removing mill scale and light rust while providing a shallow profile. Less than 3% free silica and Biasill™ XL with less than 1%.
    Grit size: 70/90
    Typical profile: 1.5 – 2.0 mils

Inhaling dusts from abrasive blasting may result in serious injury, disease, or death.
According to OSHA, only a Type CE NIOSH-certified blasting airline respirator with positive pressure blasting helmet should be used for abrasive blasting.

Product details are based on published information at the time of publication. Product details are subject to change without notice. Contact Marco for more information.