Profile: National Fireproofing, Inc. caters to commercial and residential customers. Our fire retardants are effective, non-hazardous, non-toxic and are environmentally friendly. Our products are used in all types of residential structures, as well as new and existing commercial & public structures like hospitals, hotels, health care facilities, barns, stables, prisons & educational facilities. Our FS I-DS fire retardant spray is an interior/exterior formula used on hard to penetrate materials, such as open cell and closed cell foams, insulation, hardwoods, cypress wood, thatching, bamboo & pressure treated wood & most synthetics. Our DC 333 fire barrier paint is a UL classified fire resistant coating, which can withstand extreme temperatures (more than 2000°F) and resist fire for over 2 hours on a wide variety of materials, such as sheetrock, wood, concrete, sheet metal, foam, composite panels and fiberglass.