Three-layer flexible strip. The main structure consists of a closed PE membrane. The remaining two layers are made up of a nonwoven fabric layer which allows for easy plastering. One edge of the strip contains a self-adhesive fastening strip with a covering film used for attaching to window frames, doors, etc. The other edge of the strip is fitted with a butyl adhesive component, likewise with a film that can be torn off. The self-adhesive strip enables attachment to jambs, lintels and parapet walls, even at low temperatures. Made primarily for sealing and insulating the Den Braven 3D system used for new construction and reconstruction with the replacement of windows in pre-prepared "trimmed" jambs.
Note: The Flexi window sealing strip INTERIOR without any butyl component is manufactured primarily for fastening strips when replacing windows during renovation without properly trimmed jambs. For mounting to jambs, lintels and parapet walls, a vapor-barrier adhesive is required.
type W - the added butyl tape is on the opposite side of the strip rather than a double-sided tape
type E - the added butyl tape is the same side as the double-sided tape