We can offer you a full range of low density and medium density refractory castables from 0,6 MT/m3  to 1.2 MT/m3. These references develop very low thermal conductivity and are used mainly for back lining (behind dense castables or dense bricks).

As for the insulation bricks, they may also be used in high working temperatures. Their key advantage is that they allow a significant reduction of the lining’s overall density and thickness, or the cold face temperature for equivalent thicknesses.