Polyethylene joint tape is cold applied tape coating system for anti corrosion of field joints, fittings, and specifically pipeing. The adhesive is a key in ground performance characteristic coupled with the low and high density polyethylene backing. The joint wrap tape shall be applied by hand or with a wrapping machine. II structure The specification of the tape consists of two layers, adhesive layer and film backing Adhesive: butyl rubber Outer layer: special blend of stabilized polyethylene III features: Heavy duty adhesive Resistant to UV Can be applied over a wide temperature range Good conformability and consistent uniform thickness Easily applied with no special equipment Conformable to irregular shapes. Meets astm d 1000 standard Cold applied Technical datas: ItemT-365T-380T-3100T-3130 Total thickness (mm)0.640.761.021.27 Backing thickness (mm)0.280.300.350.50 Adhesive thickness (mm)0.360.460.670.77 Tensile strength (n/ cm)456080100 Elongation (%)400 450450500 Adhesion to prime pipe (n/cm)25 Dielectric strength (kv/cm)404242.545 Volume resistivity.M)2.5x10122.5x10122.5x10122.5x1012 Water vapor transmission rate24h0.1 Water absorptivity (%)0.10.1 Uv resistance 600h80 %80 %80 %80 % Application temperature -5 to 60 0 c Max serve temperature-40 to 80. Paper carton packaging with waterproof membrane.
