Repair steps of anticorrosive coating in cathodic protection construction

Three steps of anticorrosive coating and adhesive tape repair are adopted.


1. Remove the soil on the exposed pipe section to make the anticorrosive coating defects fully exposed. Measure and record the size and position of the defects, and take photos of the defects;


2. Repair the anticorrosive coating at the defect, remove the damaged coating, and expose the corroded pipe body completely;


3. The exposed pipe surface shall be treated and the corrosion products shall be cleaned up, and the surface treatment grade shall be st2.5;


4. All rust spots, scales, dirt and other impurities and loose coating on the surface of anticorrosive coating to be repaired within 10 mm around the defect must be removed, and then the defect part shall be ground into rough surface, and the dust shall be removed with dry cloth and brush. Attention must be paid to manual derusting when working on the surface of the pipe body where the anticorrosive coating is defective.


Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in the production of MMO flexible anode, conductive polymer flexible anode and titanium coated anode, mainly providing cathodic protection technology, engineering design, installation and technical services.