Hoermann Flap Dock seal DS (suitable for normal loading frequencies), designed to suit lorry size resulting in optimal sealing between lorry and building. Side and top flaps shall consist of 2-layered, 3mm-thick substrate fabric made of polyester monofilament threads with double sided UPVC coating (Weight: 3,900g/m² to 3,700g/m²). Flaps shall be mounted on galvanized, compressible steel frame, resulting in a stable, flexible and tear-resistant construction. Flaps and frame parts manufactured as easy-to-assemble individual elements that can be screwed together.