Pypkote 4 mm is a Pipeline Corrosion Resistant Tape conforming to IS 10221 Appendix B specification. It comprises of a Tar based Polymeric mix supported on a fabric of high tensile strength Fibreglass. The Polymeric mix is specially manufactured to have properties of a high softening point, high penetration, and high resistance to aging. Tape is terminated on both exteriors by thermofusible HMHDPE Film which aids in the installation process.
Over weld joints, the tape is applied after the necessary welding and testing of the joints are completed. The procedure for the application of tape is the same as the bare pipe procedure. Overlaps on each side of the weld joints are to be 50 mm.
Pypkote tape is recommended for application closer to the time of pipe erection and lowering inside trenches to avoid damage to Pypkote. While in storage, Pypkote Rolls must be stacked properly under cover. Pypkote 4 mm is available in widths of 150mm, 250mm, 500mm and 1000mm.