Materials for refractories

Elkem offers high quality microsilica, silicon powders and complementary products for the production of advanced refractory and ceramic products globally. Our products are backed by a highly competent staff for customer service, technical assistance and product development.

Elkem Microsilica®

Amorphous silicon dioxide (silica) consisting of spherical primary particles (average diameter is 0.15 micron) and agglomerates of these (size up to 1 micron). Specific gravity is about 2.3 and spheres have no internal porosity. Specific surface area is in the range 15-30 m2/g

A range of global grades are available and generally classified according to purity; 971, HQ, 968, 955. Other grades are available for local markets.

Silicon powders

A wide variety of powders to suit customer requirements both with respect to chemistry and sizing. Si-NINE and Si-RG powders are carefully selected, crushed and milled metallurgical silicon.

Silgrain® is a range of silicon powders produced by a proprietary hydrometallurgical process.

Complementary products

A range of specialty products designed to enhance rheological properties, reduce water demand, increase flow, control setting and dry-out in microsilica-containing castables, shotcrete and gunnite.

Technical service and product development

Well-equipped laboratories dedicated to the characterisation of microsilica and silicon. Application laboratory for refractories R&D and product development. Customer service laboratories are situated in Norway, India and China.