" With the approval of the State Administration for Market Regulation (Standardization Administration), the national standard GB/T 6822-2024 "Hull Anti-fouling and anti-Rust Paint System" compiled by China Shipbuilding 725 Research Institute (Xiamen Testing Station) was officially released on November 28, 2024, and is expected to be formally implemented on June 1, 2025. The release of this standard not only responds to the requirements of environmental protection policies at home and abroad, but also points out the direction for the development of China's Marine coatings industry.

Background introduction

With the global emphasis on environmental protection, the International Maritime Organization (IMO) has proposed the implementation of environmental protection policies such as net zero emissions, in this context, green shipbuilding, energy conservation and emission reduction have become the development trend of the shipping industry. The application of high-performance Marine coatings can not only reduce the docking repair frequency of ships, extend the service life, but also show obvious advantages in economy.

Standard bright spot

The new GB/T 6822-2024 standard has been adjusted in terms of product classification, inspection items and indicators to meet the current needs of environmental protection and energy saving, and the specific changes are as follows.

Product classification: The new standard is subdivided into five types according to whether the antifouling paint contains biological agents and the different mechanism of action.

Type I: Self-polishing or abrasive antifouling paint containing biological killer

Type II: non-self-polishing or non-abrasive anti-fouling paint containing biological killer

Type III: anti-fouling and desorption paint containing biological killing agents

Type IV: Self-polishing or abrasive antifouling paint without biological killer

Type V: anti-fouling and desorption paint without biological killing agent

Inspection items and indicators: The new version of the standard increases the color and appearance of the paint film, Sibutroni items, while deleting some outdated items, such as flash point, volatile organic compounds, etc., to adapt to modern environmental requirements.

The new version of the standard changes the adhesion, cathode stripping resistance and other project indicators, changes the viscosity, cathode stripping resistance, abrasion rate and other project test methods.

Industry impact

The implementation of GB/T 6822-2024 standard will have a profound impact on Marine coating manufacturers. With an implementation rate close to 100%, this standard has become the most important reference in the industry. Its revision not only promotes technological progress, standardizes coating requirements, but also facilitates the promotion of coating production enterprises, and helps ship production enterprises to choose and judge product quality more accurately.

The release and implementation of GB/T 6822-2024 "Hull anti-fouling and anti-rust paint system" indicates that China's Marine paint industry will usher in a new round of technological innovation and market reshuffle. By reducing the competition of low prices and low quality and improving product quality, this standard will inject new impetus into the sustainable development of China's Marine coatings industry. "