IFB (insulating fire brick) are commonly referred to as soft firebricks. These measure 2.5 thick, 4.5 wide, and 9 length. Rated working temperature
TC-23 Insulating Firebrick 9 x 4.5 x 2.5 Fire Brick Morgan Thermal Ceramic 2300
An overview of insulating firebricks
Thermal Shock Stability Refractory Light Weight Insulating Brick - China Firebrick, Mullite Birck
Soft Clay Fire Brick Forge Fireplace Bricks for Sale - China Ceramic Fiber Paper, Thermal Insulation
STORE Insulating Fire Bricks, 2500F Rated, 2.5 X 4.5 X 9, Pack Of 8, Soft Fire Bricks For Forge, Kiln, Wood Stove, Oven, Fireplace, , Jewelry Soldering, Heat Insulation Block
Lynn Manufacturing Insulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 2.5 x 4.5 x 9, Pack of 4, 3000F-Rated, for Kilns
Soft Insulating Firebrick - K26 9 straight (individual) - Brackers Good Earth Clays
9” X 4-1/2” X 2-1/2” 26LI GREENTHERM STRAIGHT BRICK - Refractories
SIMOND STORE Insulating Fire Bricks - 2500F Rated - 2.5 x 4.5 x 9 - Pack of 8 - Soft Fire Bricks for Forge, Kiln, Furnace, Oven, Stove, Fireplace, Fire Pit
9 x 4.5 x 2.5 Insulating Firebricks 2300F Rating - 8 Pack – Kayso Brands
Great insulator with low thermal conductivity and very low weight Easy to shape, cut, and carve with wood working tools Used for kilns, forges,
Lynn Manufacturing Insulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 2.5 x 4.5 x 9, Pack of 4, 3000F-Rated, for Kilns
Hard refractory firebrick. 9x4x2.5 Rated to 2600 F
Hard Fire Brick 9x4.5x2.5
Insulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 2.5 X 4.5 X 9, Single Pack, 3000F-Rated, For Kilns, Forges, Furnaces, Soldering, 3130P
K-26 Soft Insulating Fire Brick (IFB)