#9 MASTIC

Adhesives for use in air ducts and thermal insulation; adhesives for use by the heating and cooling industry

Adhesive-sealant used for permanently sealing the fabricated joints and seams of sheet metal air ducts, rigid fiberglass air ducts, flexible air ducts, and thermal insulation, as well as for repairing damaged and leaking air ducts and sealing conditioned spaces from air filtration