Tyvek's double-sided acrylic tape is also suitable for the airtight sealing of laps and bonding membranes to smooth surfaces. Designed with a narrow 20mm width, the tape has been designed specifically for detailing work and bonding AirGuard ® AVCL’s in confined spaces. With a strong initial tack and tolerance to humidity, this allows the product to be used to temporarily fix membranes into place, prior to battening, boarding, etc. Features and Benefits Designed for internal detailing work only and bonding in confined spaces. Can be used with AirGuard's Air and Vapour Control Layers. Specification Roll Width: 20mm Roll Length: 25m