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Air Handling

HERESITE baking phenolic and airdrying phenolic coatings have been used for many years to protect FANS, BLOWERS, FUME HOODS, DAMPERS, GRILLS, DUCT WORK, etc. from corrosion.

HERESITE baking phenolic coatings are used for severely corrosive environments or where operating temperatures exceed 150°F. also, they are used to provide protection against abrasion.

The HERESITE baking phenolic coating will withstand operating temperatures up to 400°F. However, this does vary depending upon the products in the environment. Wheel balance normally is not disturbed because the coating is applied in thin, uniform, multiple coats.

An intact HERESITE baked phenolic coating is considered as being spark resistant and as such is suitable for exposure to explosive gases and dusts. Also, the HERESITE baked phenolic coatings do not support combustion. Excessive temperature will char the HERESITE coating, but the coating will not burn. HERESITE baked phenolic coatings will withstand exposure to practically all corrosive atmospheres with the exception of strong alkalies such as potassium and sodium hydroxide, strong oxidizers such as aqua regia and wet bromine, chlorine and fluorine in concentrations greater than 100 ppm. Because the resistance of HERESITE is dependent upon conditions of service, environment, fabrication details plus other factors, HERESITE PROTECTIVE COATINGS should be consulted always for specific recommendations.