Thermo-Butyl is a high-bond-strength, double-sided, self-adhesive sealing tape based on butyl rubber and with outstanding elastic properties. The tape is watertight, ageing- and UV-resistant, non-embrittling and straightforward to apply. Thanks to its superior quality and high bond strength, Thermo-Butyl reliably tapes over and seals the junctions of BWK underlays with rendered substrates and adjoining elements.