About Us
Hangzhou Sanfreund Technology Co., Ltd, headquartered in Hangzhou, China, is an industry leader in anti-corrosion and anti-leakage solutions, specializing in advanced, UV-curable FRP coating technology. Originating from its Japanese division, Sanfreund Co, this innovative film-based method, utilized globally for over 20 years, replaces traditional spraying techniques, providing safer, more efficient, and higher-quality solutions for the petrochemical industry. The company collaborates with Tianjin University and Zhejiang A&F University and serves major clients like Sinopec and PetroChina.
Our Innovation Journey
Hangzhou Sanfreund Technology Co., Ltd traces its origins to Japan, where its division, Sanfreund Co, laid the groundwork for advanced anti-corrosion coating solutions. With over 20 years of experience in tank lining repair and the development of specialized FRP coating, the company pioneered the application of lining coatings for storage tanks, leading to global advancements in corrosion and leakage prevention. In September 2019, Sanfreund Co’s experts partnered with the Sinopec Qingdao Safety Engineering Institute to test new membrane materials. Through immersion experiments and tests across 14 different chemical media, the membrane’s performance and durability were rigorously validated, proving its reliability in varied conditions and solidifying its reputation in corrosion protection.
By January 2020, samples for domestic construction were validated on-site, solidifying our reputation for quality and precision. By June 2022, our journey reached a new chapter as Hangzhou Sanfreund Technology Co., Ltd. established a production base in Lin'an District, Hangzhou. This marked a major step in bringing Japanese innovation to the Chinese market, achieving domestic production of our world-class membrane technology. Rigorous performance testing by third-party institutions, including the Chemical Industry Synthetic Material Aging Quality Supervision and Inspection Center and the Zhengzhou Metal Products Research Institute of China Steel Group, confirmed the exceptional durability of our membranes. From our origins in Japan to becoming a leader in China’s petrochemical industry, our commitment to excellence and innovation continues to drive our mission of providing advanced, reliable membrane solutions worldwide.