This abrasive consists of aluminium silicate, manufactured starting from vitrified ashes (also called slags of fusion), which are a by-product of the powerplants going to coal.

Properties:

    * inert and thus of not being able absolutely to enter in reaction with treated surface
    * perfectly dry (no moisture), not of alkali nor of magnetic elements
    * absolutely inoffensive because our abrasive does not comprise free silica (only in dependent form Si02)

Physical characteristics:

    * the shape of the grains: angular, cutting
    * color: chestnut, black
    * hardness: 7.1 (Mohs Scale of hardness)
    * true density: 2.3
    * apparent density: 1.3
    * (weight in bulk)

Chemical composition:
- SiO2: 45-59
- Al2O3: 21-30
- Fe2O3: 7-9
- TiO2: 0-1
- CAD: 5-7
- MgO: 2-3
- K2O   Na2O: 4-5
 
Granulometry available:

    * Ref. 28 from 0 to 0.3 mm
    * Ref. 38 from 0.2 to 0.6 mm
    * Ref. 94 from 0.2 to 1.4 mm
    * Ref. 94/14 from 0.5 to 2 mm
    * Ref. 10/14 of 1.25 to 2 mm

Conditioning:
delivered out of bag of 25 or 35 kg
 
Important:
For an order with the ton and/or by pallet, thanks for contacting us by telephone with 04.93.20.34 .51 to determine the transport costs.
- out of bags of 35 kg or 25 kg on covered pallets of 1 T 575 or 1 T 200