FL4513 is a preformed, Window Sealing Expanding Foam Tape approved to DIN 18542:2009 standards.
Made of resilient open-cell polyurethane expanding foam impregnated with a water-based acrylic modified asphalt emulsion, FL4513 is perfect for sealing joints between window units and timber housing frames.
Suitable for sealing against water, vapour, air, sound and dust in expansion/contraction joints or in static gasket-type joints such as sills or mechanically fastened joints.