Labels:bulletin board | cup | door | sink | table | toothbrush OCR: Prev Next Water Management of the Building Envelope Four Categories Qf HVAC Duct Sealants Caulked-in-place Brush-on Mastic Sealant For the past 00 years duct sealing technologies have evolved to present day methods capitalizing on first cost advantage and labor saving technigue without compromising efficacy most common product offered today the water base caulked-in-place or brush- applied mastic This type of sealant is available in caulking cartridges and buckets and is ideal for applic ation uo arive cleat transverse duct joints Typically these products have 09 tc 70% solids Evaporation of water 30 to 40% 1o the mixture must proceed dry and cure priorto air pressure test 20 technique duci oints vaporation prior
