Copper Slag

Copper Slag

Indoblast copper slag grit is a by-product produced during smelting of copper which is then processed in to abrasive products. Typically it is composed of ferroslilicate material and oxides formed when the molten slag is quenched in cold water. This cooling process fractures the slag into coarse, angular particles making it an ideal choice in many applications.

Indoblast is a low cost expendable abrasive suited for open blast cleaning and due to its low silica content does not pose the health hazards created by silica sand. Its sharp, hard particles can provide a fast cleaning action and excellent surface profile. 

CHEMICAL ANALYSIS		PHYSICAL PROPERTIES
Constitutent	% Weight	Property	Typical Value
Silica SiO2	: 26-30%	Colour	: Black, glassy
Free Silica	: <0.5%	Grain Shape	: Angular, multifaced
Alumina, Al2O3	: 1 - 3%	Hardness	: 7 Moh
Iron Oxide as FeO	: 42-48%	Specific Gravity at 25oC	: 3.5
Calcium Oxide, CaO	: 1-2%	Bulk Density at 25oC	: 1.87 tonnes/m3
Magnesium Oxide, MgO	: 0.8 - 1.5%	pH	: 7.0
Copper Oxide, CuO	: 0.60 - 0.70%	Conductivity at 25oC	: 2 mS/m
Sulphates	: 0.02 - 0.3%	Weight raise on Ignition	: 4%
Chlorides	: 0.001 - 0.002%	Moisture Content	: <0.1%

 

Grade	Size Range (mm)	Cleanliness Level	Surface Profile Average, Microns	Application
Coarse	0.2 - 2.4	Sa 2 1/2 / SP 10	100	The ultimate size for the tough heavy duty blastjobs, thick rust and coatings removal.
Medium	0.5 - 1.4	Sa 3 / SP 5	75	An all purpose size for medium to heavy rust or coatings removal
Fine	0.2 - 1.0	Sa 3 / SP 5	40	Cleaning new material, removal of light coatings

Features & Advantages 

• Endoblast has a high resistance to shatter compared with some other expendable abrasives.  This ensures less breakdown of particles thereby enhancing cutting power and minimizing the dust nuisance.
• The many faceted angular grains give Endoblast a large number of cutting edges for rapid removal of old coatings, rust and mill scale.
• Between 6 and 7 of the Moh scale Endoblast bites into rust, mill scale and the toughest coatings.
• With a high specific gravity endoblast generates immense energy at the work surface giving fast cleaning rates,