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19 November 2025 Facing confined workspace in Cuihuashan floating dock, CHI(Guangdong) optimized crew deployment and dynamically adjusted workflows to safely strip 9,070m2 of old coatings from the flat-bottom hull and 2,200m2 from port / starboard freeboard areas. The team then applied five-coat painting to the entire hull and seven-coat painting around the scrubber overboard discharge outlet. To minimize dock time, the shipyard implemented a "pre-dock preparation" strategy: Pre-docking robotics: Used smart painting robots to pre-strip 1,600m2 of hull coatings above waterline during berthing Early access operations: Deployed aerial platforms for ultra-high-pressure water blasting on starboard freeboard This enabled immediate full-scale operations upon docking. The project set new efficiency benchmarks: Completed 11,300m2 hull stripping (including pre-dock work), dual high-pressure washing, and first-coat application within 51 hours of docking. Achieved full painting sequence in just 99 total hours - slashing the dock time by 40% compared to conventional methods. 
Image by China COSCO Shipping Corporation Limited. China COSCO Shipping Corporation Limited, press release 
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