Conserves thermal energy by insulating steam, hot and cold water fittings, tanks, boilers, etc. Suitable for temperatures up to 300 deg. F. Easy-to-use, just mix with water and apply. Cures in approximately 24 hours and may be painted when temperatures are up to 300 deg. F. Easy-to-use, just mix with water and apply. Cures in approximately 24 hours and may be painted when dry. 2 lb.