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Thermaline 4000 Aluminum is a high heat polymer coating used for the protection of equipment operating at elevated temperatures. It is typically used over Carbozinc® inorganic zinc primers for outstanding corrosion protection and heat resistance. The combination of an inorganic zinc primer with this grey-aluminum finish provides exceptional performance in durability. Unlike most high temperature silicone-based technologies with soft films, Thermaline 4000 Aluminum does not require a heat cure for film forming properties. It cures hard rapidly under ambient conditions (humidity greater than 30%).