#6 RCD Mastic 11 oz
RCD Corporation #6 Mastic seals all air duct types including UL listed air ducts, thermal insulation, and crawl space vapor retarders. Easily applied by brush, trowel, palm, spray or extrusion. The color is Cream White. Store at temperatures between 45 F and 90 F. Apply at temperatures between 35 F and 120 F.