Copper slag

Airblast-Abrasives B.V.

Copper slag, also known as iron silicate, is a dispensable abrasive which is a by-product from metal melting processes. The material is used for blast cleaning steel, stone and concrete surfaces for the removal of mill scale, rust, old paint etc.

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More than 50 years of experience
Airblast offices in 12 countries

Grain sizes
Specifications

Grain sizes

0.1 – 0.4 mm	0.5 – 1.6 mm
0.1 – 0.6 mm	0.2 – 2.5 mm
0.2 – 1.0 mm	0.5 – 2.5 mm
0.2 – 1.5 mm

Specifications

Chemical composition

SiO2	Al2O3	Fe2O3	CaO	K2O
25-35%	2-9%	45-65%	0-2%	0-1%

MgO	TiO2	Na2O	Others
0-1%	0-1%	0-2%	Traces only

Physical properties

Shape	Sharp and angular
Grain Density	3.5 kg/dm³
Bulk Density	1.8 kg/dm³
Hardness	7 Mohs
Conductivity	Less than 250 µS/cm
Water Soluble Chlorides	Less than 0.0025% (m/m)

Packaging

25 kg paper bags on EURO-pallet
In big bags
In bulk