2.5" Soft bricks are lightweight and made from a refractory clay body containing combustible materials. When fired, the materials burn out leaving a sponge like matrix of air pockets, which serve to provide insulating qualities to the brick. Also known as insulating firebricks (IFBs), these bricks absorb about half the energy as hardbricks during a firing. They are used as the brick of choice for constructing electric kilns or as insulating liners in reduction kilns.
Quantity discounts: When you buy 25 bricks or more, you save $0.75 per brick!