Mending rods also called patching rods, pipe repair stick, hot melt Mending rods, etc., it is made of imported butyl rubber, adhesives, fillers and other polymeric corrosion materials extruded into a mold made of high-temperature mixing , each about 0.125Kg, after no primer, liquefied petroleum gas flamethrower borrow baking melt to damage the wound, cooling can be. Mending rods designed for underground or overhead weld steel pipe corrosion resistance, thermal insulation pipe up hurting Mending, repair corrosion damage PE layer construction, namely polyethylene anticorrosion coating scratches, bumps, bubbles, Mending cuts and other injuries when measured peel strength of repair; high hot melt glue stick and outer PE pipeline corrosion coating bond strength, form a continuous close preservative system, PE melt rods heated in the construction, so that the hot melt adhesive coating layer melts, and Mending site close bond, and the original pipeline polyethylene outer coating is formed integrally bonded pipe evenly wound surface to form a continuous close preservative system can resist soil stress, anti-hydrostatic pressure, resistance to cathodic stripping, resistance to chemical corrosion and mold erosion, providing long-term, effective corrosion protection for steel pipes. Features: Mending stick uniform, with anti-infiltration, anti-aging, chemical resistance, adhesive power, environmental adaptability, easy operation and other characteristics, as well as anti-cathode stripping, anti-chemical corrosion and erosion and other fungi special performance corrosion behavior.