Some common anti-corrosion materials on the anti-corrosion steel pipe market. The main anti-corrosion materials include: petroleum asphalt, epoxy coal asphalt, adhesive tape, epoxy powder, PE coating, PP coating, covering six major categories and engineering applications. Anti-corrosion materials 1. Commonly used patching methods include petroleum asphalt patching, epoxy coal pitch patching, adhesive tape patching, epoxy powder patching and PE heat shrink material patching.
Steel pipe anti-corrosion methods There are mainly the following methods for steel pipe anti-corrosion:
Anti-corrosion coating on the outer wall: Apply anti-corrosion coating on the outer wall of the steel pipe to prevent the steel pipe from being corroded.
Inner wall anti-corrosion coating: Apply anti-corrosion coating to the inner wall of the steel pipe to prevent the inner wall of the steel pipe from being corroded.
Cathodic protection: Prevents steel pipes from corrosion by applying a negative potential to them.
Sacrificial anode: Install a sacrificial anode near the steel pipe to protect the steel pipe from corrosion.
Below are the coating types applied in projects.
1. Black coating or anti-rust oiling
2. 2LPE coating
3. 3LPE coating (One layer of epoxy powder (FBE>100um); Two-layer adhesive (AD) 170～250um; Three-layer polyethylene (PE) 1.8～3.7mm)
4. 3LPP coating
5. Epoxy coating
6. Concrete coating
7. Ceramic coating
