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Insulating brick, often called "soft" brick, are made of a high temperature resistant material which has been foamed while wet. When made into bricks the entrapped air provides excellent insulation. These bricks are often used as liner in brick and pottery kilns to make them more efficient.
Most Common Sizes are :
|Brand Name||ARPL Cold Face||ARPL Hot Face|
|B.D. (G.m/cc) Max.||0.8||1|
|CCS (Kg/cm2) Min.||15||40|
|T.C.at 600oF Temp. (Kcal/m/hr/oC)||Max. 0.19||0.3|
|PLC (%) for 5 hrs.||Max. 1.5 at 1000°C||1.5 at 1200°C|
|SWT (C) Max.||1050||1200|
|PCE (OC) Min.||–||30|
|Al2O3 (%) Min.||28||35|
|Fe2O3 (%) Max.||2||2|