HHWS.Two-piece, with separate closures designed for the corrosion protection.HHWS is superior performance heat shrinkable products designed for corrosion protection on field applied girth-weld joints of buried and exposed steel pipelines operating up to80°C(176°F). The inner layer is two-components epoxy primer which coated on steel pipe;Intermediate level is special hot melt adhesive;Outer layer is modifide radiation crossing linking polyethylene backing. *Cross-linked backing provides superior abrasion,mechanical and chemical attack resistance. *High performance adhesive provides excellent resistance to Cathodic Disbondment to ensure long-term corrosion protection. *Just-in-time customized lengtha allow bulk rolls to be filed cut to protect any pipe size. *Open sleeve configuration allows the product to be applied after the pipeline has been welded and cleaned.