Types of pipeline coating and its advantage and disadvantage
Last page we know there are sever types of pipeline corrosion.Different types of coatings are designed to mitigate corrosion in different environments, including plant-manufactured systems and construction site tapes.Read this article you will know several main types of pipeline coating and its advantages and disadvantages.
Coal Tar Enamel Coatings
Advantage: These have fair adhesion to steel
Disadvantage: There are severe health concerns associated with their use
Metallic Spray Coatings
The application of sprayed thermal coatings, such as zinc and aluminum, is advantageous in submerged piping systems. These coatings offer corrosion protection under varying environmental conditions at a low cost.
For very-high temperature pipes, refractory linings, polyurethane linings, metallic coatings and concrete-mortar linings are used.

3LPE COATING- EPOXY LINING PIPE
Epoxy (Fusion-Bonded)
Advantage:
- This coating has excellent adhesion to steel
- It can resist disbondment
Disadvantage:
- It needs high-temperature application
- It has poor abrasion resistance
Plant-Applied Tape Systems
Advantage: These have good adhesion to steel
Disadvantage: They may face blistering problems under stress
Polyolefin (Crosshead Extruded) with Butyl Adhesive
Advantage:This coating is non-polluting
Disadvantage:
- It has low adhesion strength with steel pipes
- It may suffer disbondment due to cathodic protection
Polyolefin (Dual-Side Extruded) with Butyl Adhesive
Advantage:
- This coating has a good adhesion to steel
- It can resist disbondment due to cathodic protection
Disadvantage: It can’t be removed for pipe repair

3LPE 2LPE EPOXY COATING PIPES
Multi-Layer Extruded System of Polyolefin or Multi-Layer Epoxy Systems
Advantage:
- This coating has excellent adhesion to steel
- It resists disbondment due to cathodic protection
- It has high abrasion resistance
- It has resistance to hydrocarbons
Disadvantage:
- There’s a high initial cost
- Stringent application parameters must be followed
As a professional pipeline supplier, Haihao Group often advises customers to use suitable pipeline materials and coatings according to the product use environment.So as to reduce corrosion of pipeline products and extend its service life.If you want to know more about our piping products or you want us to advise on your pipeline,please email to us:sales@haihaogroup.com