Hardcast CCWI-181 Cartidge Indoor/Outdoor Duct Sealant in White. Optional Products. CCWI-181 Indoor/Outdoor Water Based Duct Sealant A versatile, all purpose duct sealant for use on all types of metal duct, fi berglass duct board, duct fabric and fl ex duct. CCWI - 181 is a versatile, all purpose duct sealant for use on all types of metal duct, glass fiber duct board, and flex duct, as well as duct fabric and flexible tubing runouts. Results 1 - 2 of 2: Product and Description; MARS 78903: Starting at $2.82. Hardcast CCWI-181 1 Gal Gray Duct Sealant with Fiber #82905635 - 304148 Hardcast Ccwi-181 1 Gal Gray Duct Sealant With Fiber. Hardcast CCWI-181 Cartidge Indoor/Outdoor Duct Sealant in White. CCWI 181 incorporates a built- SDS (Safety Data Sheet) For your convenience we have gathered the most comprehensive list of Safety Data Sheets as made available by our suppliers. Starting at $48.14. Hardcast CCWI-181 Cartridge in Grey. Starting at $48.14. Refrigerant Suite SDS. APPLICATION CCWI-181™ Duct Sealant - Gray - 1 Gallon Product Highlights CCWI - 181™ is a versatile, all purpose duct sealant for use on all types of metal duct, glass fiber duct board, and flex duct, as well as duct fabric and flexible tubing runouts. Starting at $46.57. HARD CCWI-181-304148 Gray Duct Sealant 1 Gallon. Starting at $2.82. A versatile, all purpose duct sealant for use on all types of metal duct, glass fiber duct board, and flex duct, as well as duct fabric and flexible tubing runouts. Hardcast CCWI-181 Indoor/Outdoor Mastic in Gray. Starting at $2.82 . CCWI - 181 incorporates a built-in polyester reinforcement for exceptional strength, with UV inhibitors for outdoor use. Buy Hardcast CCWI-181 (Gray) Duct Sealant - 1 Gallon (Gray). Hardcast CCWI-181 Cartridge in Grey. Home HARD CCWI-181-304148. Starting at $2.82 . CCWI 181 incorporates a built-in polyester reinforcement for exceptional strength, with UV inhibitors for outdoor use. Hardcast CCWI-181 Indoor and Outdoor Water Based Duct Sealant. ... Click for SDS NOTE: Many manufacturers may change their products, it is NOT recommended that you use these spec sheets for cutouts, planning, etc. 1 - 5-Gallon Pail (Gray) .....304149 Compliant with LEED Requirements Compliant with LEED Requirements A versatile, all purpose duct sealant for use on all types of metal duct, glass fiber duct board, and flex duct, as well as duct fabric and flexible tubing runouts. Available Downloads. PHYSICAL AND CHEMICAL PROPERTIES Appearance: White/Gray Mastic Vapor Pressure: 17 mm Hg @ 20ºC Odor: Typical latex with slight ammonia odor Vapor Density (air=1):