Tesa's new type 4664 metallised PE cloth tape has a natural rubber adhesive that gives very high initial tack and good adhesion, even on rough surfaces. It is conformable, moisture resistant and vapour-tight, and can be used at temperatures of up to 95oC. Suitable for the assembly and sealing of metal ducts or joining metal-foil-backed insulating sheets, 4664 is also UL723 rated for flame and smoke. The tape is currently available in 50m x 48mm wide rolls.