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Heat Guard Application Instruction
Heat Guard Refractory Coating:
Heat guard Refractory Coating is water based refractory coatings. This coating is used for coating of
ceramic fibre lining to protect them against heat, flue gases and fumes. It prevents heat loss. It reflects
radiant heat to the hot zone from the insulation surface that reduces the energy needed to achieve the target
temperature thus it saves fuel. Hence it considerably prolongs the life of refractory.
Temperature Grade: 3270°F (1800°C)
Mixing:
Mix Dry Heat Guard Powder; add 50% of clean tap water to it for brushing applications.
Application:
Apply 1.5mm to 2 mm thick Heat Guard coating over refractory lining with the help of Brush.
Precaution:
After coating the area with Heat Guard coating, the first firing should be carried out slowly to avoid
development of any surface cracks or other defects due to the moisture content in the coating material.
Curing:
The applied Heat Guard coating should be air dried for minimum 24 hours and then slowly raise the
temperature up to 1112°F by increasing temperature 68 to 77°F / hr. and then reach to operating
temperature at around 122°F / hour. For large coating thickness adequate air dying is required to avoid
cracks the Heat Guard coating.
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