The self-adhesive rubber edge molding (SKK) is applied along the relatively sharp edges of the duct opening and prevents eventual injuries while making the access door air-tight even by higher pressures. Max. duct wall thickness: 2 mm.
The SKK molding is fitted with injected glue. It can be applied on duct walls up to 2 mm thick (Gauge ≈14)
The thicker side of the SKK must be inside the duct. Apply the SKK molding so that the duct wall enters as deeply as possible into its pocket.