3PE Primer Epoxy Powder Project for Oil & Gas Branch Pipelines in Northern Saline-Alkali Areas

This peripheral gathering and transportation branch pipeline project of North China Oilfield adopts buried 3PE anti-corrosion steel pipes. The pipeline crosses extensive saline-alkali tidal flats and wetlands with highly corrosive soil.

Product Adopted

Jiachi Special Fusion Bonded Epoxy Powder for 3PE Primer (FBE Primer)

Project Challenges

• High underground chloride content brings prominent risk of electrochemical corrosion;
• High-speed continuous coating on 3PE production line demands stable powder leveling performance and good compatibility with adhesive;
• Coatings on special-shaped components such as elbows and compensators are prone to cracking and peeling off.

Jiachi Solution

Modified epoxy powder specially formulated for 3PE assembly lines forms chemical bonding with steel pipes after melting. It features stable temperature resistance, strong impact resistance and superior compatibility with intermediate adhesive. The coating avoids peeling on elbow sections.

Project Achievements

Third-party tests confirm all anti-corrosion indicators of the full pipeline meet standards; peel strength and cathodic disbondment performance exceed national specifications. The coating remains intact since project completion, offering long-term protection against erosion from saline-alkali soil.