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To meet the increasingly demanding requirements for environmentally friendly, low-carbon, heavy-duty, anti-corrosion coatings for hydraulic metal structures, an highly durable, environmentally friendly and surface-tolerant HS30 coating was developed by screening various materials, such as epoxy resins, curing agents, adhesion promoters, wetting dispersants, pigments, fillers, and solvents, based on the formulation of benzene-free, non-toxic, and surface-tolerant high-build HS20 epoxy coatings. The performance evaluation results of the coating indicated that HS30 has excellent properties, such as adhesion and flexibility, neutral salt spray, acid, alkali, salt water immersion, and artificial climate aging, meeting the requirements of HG/T 4564-2013 and GB/T 35602-2017 for green and surface-tolerant epoxy coatings, as well as the high durability standards for C4, C5, and Im2 environments, as outlined in GB/T 30790.6-2014. A three-year field test at the Yangkou outer sluice, located at the junction of sea and freshwater, demonstrated that under surface-tolerant conditions, HS30 outperforms the traditional zinc spray combined with heavy-duty anti-corrosion coatings in terms of corrosion resistance, indicating its potential to replace zinc spraying plus heavy-duty anti-corrosion coatings.

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Research and Application of Highly Durable, Eco-Friendly, Surface-Tolerant, and Heavy-Duty Anticorrosive Coatings

  • 会议论文

  • 发表日期：

    2026年

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  • Zhimin Xu,
  • Zhanhua Wang,
  • Sushu Wu,
  • Yiping Cai,
  • Jindong Li,
  • Xiaoyong Wang,
  • Xudong Xu,
  • Xianglin Xia,
  • Kangsheng Wu,
  • Zhigui Chen

摘要

To meet the increasingly demanding requirements for environmentally friendly, low-carbon, heavy-duty, anti-corrosion coatings for hydraulic metal structures, an highly durable, environmentally friendly and surface-tolerant HS30 coating was developed by screening various materials, such as epoxy resins, curing agents, adhesion promoters, wetting dispersants, pigments, fillers, and solvents, based on the formulation of benzene-free, non-toxic, and surface-tolerant high-build HS20 epoxy coatings. The performance evaluation results of the coating indicated that HS30 has excellent properties, such as adhesion and flexibility, neutral salt spray, acid, alkali, salt water immersion, and artificial climate aging, meeting the requirements of HG/T 4564-2013 and GB/T 35602-2017 for green and surface-tolerant epoxy coatings, as well as the high durability standards for C4, C5, and Im2 environments, as outlined in GB/T 30790.6-2014. A three-year field test at the Yangkou outer sluice, located at the junction of sea and freshwater, demonstrated that under surface-tolerant conditions, HS30 outperforms the traditional zinc spray combined with heavy-duty anti-corrosion coatings in terms of corrosion resistance, indicating its potential to replace zinc spraying plus heavy-duty anti-corrosion coatings.