What properties should the anti-corrosion layer of the steel pipeline have

The anti-corrosion layer of the steel pipeline should have the following properties:

(1) Effective electrical insulation.

(2) Good moisture and water resistance.

(3) It has strong mechanical strength.

(4) The anti-corrosion layer has good adhesion to the steel surface.

(5) The material and construction process of the anti-corrosion layer should not hurt the performance of the masterbatch.

(6) It has good resistance to cathodic dis-bonding.

(7) It has good chemical resistance and aging resistance.

(8) The damage to the anti-corrosion layer is easy to repair.

(9) The impact of the anti-corrosion layer on the environment should meet the corresponding requirements.