Labels:ashcan | bag | bulletin board OCR: Prev Next Water Management of the Building Envelope Four Categories Qf HVAC Duct Sealants Caulked-in-place Brush-on Mastic Sealant Recent adoption the International Energy Conservation Code by state and municipal entities has increased the demand for mastics which have achieved UL 181 Listed rating Current listings are identified as UL 181 A-M and UL 181 B-M and refer to tests conducted by UL using mastic on rigid and flex xible duct material. Additionally these same products are suitable for use on galvanized metal ductwork Alth nough current UL 181test standards do not Features: include galvanized metal ductwork the Indoor Only efficacy on metal is implied based on UL 181B-M Listed historical evidence Water Based All Pressure Classes 22 incr reased ough ductworl historica
