VOC Free Fire Retardant Sealant can be used in outdoors as well as indoors to protect the various thermal insulations specially for air-conditioning duct, chilled water line, hot water line etc. The Sealant exhibits resistance to water, UV and abrasion. The Fire Retardant Sealant is free from volatile organic compounds. VOC Free Fire Retardant Sealant is rust proof and has a colloid appearance.