Mastic Home Depot Hvac. If you’re using mastic to seal seams in fiberglass board ductwork, use fiberglass mesh tape for all joints. (if you spread mastic with your fingers, wear rubber gloves.) gaps in ductwork or plenums that are over 1/16 or 1/8 inch wide can be sealed with mastic as long as the gap is first reinforced with fiberglass mesh tape.
But, i already have simple seams taped down. Mastic is really hard to come by in local stores (i've gotten strange looks asking at home depot, lowes, local hardware stores). I'd prefer to use mastic where branch ducts break off the plenums.
Mastic is really hard to come by in local stores (i've gotten strange looks asking at home depot, lowes, local hardware stores).
You can instead use a floor machine equipped with a 3m black scrubbing pad, with a. Mastic is really hard to come by in local stores (i've gotten strange looks asking at home depot, lowes, local hardware stores). Cads may be used to seal all types of hvac duct systems including metal, fiberglass, duct board and flex duct. To begin with, when you buy an air conditioning system from the home depot, you're still buying it from the contractor.
