Mountainous rural drinking water improvement project in Shanxi. Buried water supply pipes of DN800-DN1400. The local soil features high salinity and highly corrosive groundwater, with mandatory sanitary requirements for inner coating in contact with drinking water. Product Selected: Jiachi drinking water grade FBE epoxy powder Challenges: Mountain construction conditions, complex backfill soil, long-term humid and saline-alkali environment which may cause coating peeling. The coating must not release harmful substances for potable water service. Solution & Results: Custom Jiachi potable-water FBE powder applied by electrostatic spraying. The dense coating delivers strong adhesion and outstanding resistance to salt spray and soil corrosion, complying with drinking water hygiene standards. On-site inspection shows no pinholes or coating delamination after installation. Stable bulk supply guaranteed for long-term safe water delivery in mountain regions.
Municipal sewage network in Bangkok, Thailand. Buried sewage pipelines operating in hot and humid tropical climate. Sulfide-containing soil requires anti-corrosion service life over 10 years, matched with 3PE coating system. Product Selected: Jiachi heavy-duty FBE epoxy powder (primer powder for 3PE system) Challenges: Tropical high temperature & humidity, microbial soil corrosion. Client requires SGS test reports and consistent quality across batches. Solution & Results: Custom heavy-duty formulation with excellent cathodic disbondment resistance and stable leveling performance, suitable for 3PE production line spraying. SGS certificates provided, full batch quality inspection. Goods delivered by container shipment. The coating resists sewage and tropical soil corrosion after commissioning, bringing repeat orders from the client.
Circulating water system of thermal power plant in Cangzhou, Hebei. Large-diameter DN1200 steel pipes. The circulating cooling water contains chloride ions under alternating high-low temperature conditions, requiring anti-corrosion treatment for both inner and outer pipe walls. Product Selected: Jiachi industrial epoxy powder, inner coating + outer FBE coating Challenges: Chloride corrosion in circulating water, coating cracking risk under temperature cycling. Good powder leveling and high spraying efficiency are required for large-bore steel pipe coating. Solution & Results: Jiachi industrial epoxy powder forms tough cured coating with good chloride resistance and no cracking under thermal cycles. Stable powder particle size fits production line spraying for large diameter pipes. Delivery schedule meets power plant construction milestone, and the pipeline has been running steadily ever since.
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