Our PVC 19 mm tape is the standard width used by electricians These tapes are also useful for wrapping around ropes and wires prior to cutting and for colour coding tools and conduit tubes. Specification Roll Width: 19 mm Roll Length: 33 m Technical Details Adhesion to steel: 2.4 N/10 mm Elongation at break: 180 % Tensile strength: 26 N/10 mm Thickness: 0.13 mm. Fire retardant to: BS 3924 31/90 Tp.