Used in the furnace linings, these insulating refractory bricks induce significant energy savings due to their excellent insulating properties combined with their physical properties. They are particularly recommended to be used in reducing atmosphere.

The range includes six qualities which respectively brand named :
JM23, JM26, JM28, JM30, JM32, JM34.

Apart from these bricks, there is a large range of castables which offer similar advantages, as well as insulating refractory cements which are used for gap filling.