RCD #6 Mastic
Low & High Velocity air duct sealant
RCD Corporation #6 Mastic low to high velocity air duct sealant permanently seals the joints and seams of thermal insulation, crawl space vapor retarder, house wrap and all air duct types including UL listed air ducts.
#6 Mastic also seals leaks in return air ducts, supply ducts, air handlers, plenums, grilles, registers, dampers, and boots and is used in home sealing to reduce air infiltration into the living area.
Improves indoor air quality, reduces humidity, increases comfort and saves energy.
Easy application by brush, trowel, palm, spray, or extrusion.
#6 Mastic is weather resistant, fiber reinforced, contains ceramic microspheres, water borne, non-flammable, earns LEED credits and UL listed
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