Aluminum silicate
Coal slag
Also known as coal slag is a dispensable abrasive which is a by-product of coal fired power plants. Our aluminum silicate generates less dust than copper slag and is mainly used in open blasting operations. It is environmental friendly and in accordance with ISO 11126-4.
Our aluminum silicate is mainly used in shipyard industry, oil industry, bridges, sluices, façade cleaning and concrete cleaning.
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Contact information
Airblast-Abrasives B.V.
Kelvinstraat 8
1704 RS Heerhugowaard
The Netherlands
Do you have questions about how we can help your company? Send us an email and we’ll get in touch shortly.
- More than 50 years of experience
- Airblast offices in 12 countries
Grain sizes
| 0.2 – 0.5 mm | 0.5 – 1.4 mm |
| 0.2 – 1.0 mm | 0.5 – 2.0 mm |
| 0.2 – 1.4 mm | 1.0 – 2.0 mm |
| 0.2 – 2.0 mm | 1.4 – 2.8 mm |
Other sizes on request.
Chemical composition
| Silicon dioxide | Aluminium oxide | Iron(III) oxide | Calcium oxide | Potassium oxide |
| 42-58% | 23-32% | 3-15% | 2-8.5% | 0.5-4.6% |
Physical properties
| Grain density | 2.4 – 2.6 kg/dm³ |
| Bulk density | 1.05 – 1.4 kg/dm³ |
| Hardness | min. 6 Mohs |
Packaging
- 42 X 25 kg paper bags on EURO-pallet (1.050 kg)
- 1000/1500 kgs. in big bag
- in bulk
