Contact persons in Dorsten

Carsten Kindermann

Carsten

Kindermann



Phone:+49 (0)2362 - 2005-31
Fax.:+49 (0)2362 - 2005-99
E-mail: send ...

Contact person in Ottendorf-Okrilla

Olaf Natusch

Olaf

Natusch



Phone:+49 (0)35205 - 527-14
Fax.:+49 (0)35205 - 527-12
E-mail: send ...

Safety data sheet

KONTRASIL

We supply blasting grit trademarked KONTRASIL®. It’s a synthetic mineral blasting grit made of melted coal slag according to ISO 11126-4.

blasting
KONTRASIL

Melted coal slag arises during the generation of electricity from coal. The liquid fire proof components of the coal are cooling down in a water bath. The solidified liquids are broken, dried and classified into several granulations.

Characteristics:

  • no silicosis danger, because there is no free crystalline silica acid
  • no carcinogenic or toxic components
  • no water-soluble components
  • no waters or air pollution
  • no subsequent changes of the sand-blasting products

 

Application range:

  • Pretreating concrete surfaces before restoring
  • Derusting steel by means of compressed air jet technology
  • Surface preparation (removal of paint and rust)
  • Polishing, cleaning and grinding

Chemical properties:

SiO248 - 54  Masse - %
Fe2O3 7 - 12  Masse - %
Al2O3 24 - 30  Masse - %
K2O 2 - 5  Masse - %
CaO 4 - 12  Masse - %

Technical data:

Mohs hardness:7
specific density:2.5 - 2.6 g/cm³
bulk density:1.3 g/cm³

Available granulations:

Delivery forms:

  • bulk
  • BigBag per each 1.5 t
  • 25 kg paper per 1.05 t on europallet, with shrink cap

Other packages available on request