Hardcast Smoke & Soot is a spray-applied coating that resists microbial growth, locks down offensive particles, and removes odors from the air-stream of fugitive emissions from fire deposits below the detectable limit. Designed with an EPA registered chemical package, this coating was engineered to be used on ductwork and insulation that has been exposed to smoke and soot from a fire to negate the need to replace the entire duct by merely resurfacing the existing substrate.