Pipe patch is specially used for repairing scratches, scratches, bubbles and incisions in the determination of peel strength of extrusion polyethylene anticorrosive coating.It is made of polyolefin base material and special sealing hot melt adhesive.To repair the pipeline construction in the heating and melting hot melt adhesive coating, welding and repair parts, and the original pipe polyethylene anticorrosive layer form an organic whole, uniform coating on the tube surface, form a continuous close corrosion protection system, can resist the soil pressure and hydrostatic pressure resistance, cathodic disbonding resistance, chemical resistance and the erosion of the mold, long-term and effective protection of steel pipe.Patch is also used to repair the two and three layers of polyethylene outer anti-corrosion coating caused by transportation, inspection and construction process, such as local spot damage and line scratch damage small area less than 100 square mm.Hot melt glue rod, also known as PE melt glue rod, also known as mending rod, is used together with pipe mending piece to fill the surface defects of three PE pipes.Note: cutting service can be provided according to the specification of patch.There are two kinds of patch: 200mm wide and 250mm wide, which can also be customized according to customers' requirements.Thickness is generally 2.0mm, 2.5mm, can also be customized according to customer requirements.Can be a single piece of procurement or volume procurement.