Apexior No. 3 specially formulated with a special type of binder, which can withstand high corrosive conditions like boiler exterior where it is in contact with salf or fresh water temperature below 50 degrees centigradewet heat or 230 degrees centigrate dry heat in covered areas otr interior steel work. It is manufactured with inert bitumen with above mentioned binder. It is recommended for use in areas like exterior wall of boiler drums, condensers, airchillers, cold water tanks, centrifugal pumps, piping, stoker wind boxes, ducting etc.,