This refractory mass is used on the internal surfaces of furnaces, boilers, pipes and industrial structures in the steel and petrochemical and oil and gas industries using spraying (gunning) methods. Thermal insulation and resistant to heat, corrosion and other harsh conditions. Gunning mass is used to protect surfaces exposed to possible hazards such as fire, corrosion and high pressure equipment.
Material | Percentage | Typical |
---|---|---|
Al2O3 | 55-60 % | 57 % |
SiO2 | 23-28 % | 25 % |
Fe2O3 | 5-10 % | 7 % |
CaO | 3-5 % | 4 % |