Mould Powders

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Basic Covering Powders

Metallurgica distinguishes between two different types of basic covering powders:

Spray-dried covering powders based on magnesite, with good thermal insulation properties, protection against re-oxidation and low refractory erosion. Calcium aluminates, which offer the potential for oxide pick-up and protection against re-oxidation. Because such materials have poor insulating properties, it is necessary to add an additional insulating compound on top.