Water Management of the Building Envelope
Four Categories Of HVAC Duct Sealants
For the past 30 years duct sealing
technologies have evolved
to present day methods capitalizing
on first cost advantage and labor saving
technique without compromising efficacy.
A most common product offered today is
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 application on drive
cleat transverse duct joints. Typically these products have 60 to 70% solids. Evaporation of water, 30 to 40% of the mixture, must proceed dry and cure prior to air pressure test.
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Caulked-in-place / Brush-on
Mastic Sealant
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Index