Dual Upgrade of Production Capacity & Technology, Gerunwei Metal Surface Pretreatment Chemicals Support Global Clients’ Green Manufacturing Transition
As global manufacturing environmental regulations grow stricter, low-sludge, phosphorus-free and multi-material compatible Metal Surface Pretreatment Chemicals have become core purchasing demands for overseas buyers. Qingdao Gerunwei Environmental Protection Technology Co., Ltd. leverages Qingdao’s integrated airport and seaport logistics hubs to complete production line capacity upgrading. We steadily supply a full range of chemicals including Phosphating Solution, Metal Degreaser, Water-based Anti-rust Agent, Phosphorus-free Ceramic Coating Agent and Custom Pretreatment Chemicals, delivering one-stop pre-coating solutions for overseas sectors such as new energy vehicles, construction machinery, photovoltaic hardware, home appliances and bicycles.
Our factory is 13 kilometers from Jiaodong International Airport and 8 kilometers from Hongdao High-speed Railway Station, with direct access to Qingdao Port cargo terminals. Bulk chemical orders can be shipped flexibly by air or sea to greatly shorten cross-border delivery lead times. After production line expansion and optimization, our annual output stably exceeds 12,000 tons, fully supporting long-term mass orders from large overseas manufacturers. The company holds dual ISO9001 quality and ISO14001 environmental management system certifications. All products are manufactured with eco-friendly raw materials to cut wastewater and sludge generation from the source, complying with emission standards of Europe, Southeast Asia, the Middle East and other regions.
Our in-house R&D team serves as core competitiveness to match diverse global production lines. We develop exclusive Custom Pretreatment Chemicals with one-on-one formula customization based on clients’ workpiece materials, production temperature and local environmental regulations. Our flagship Phosphorus-free Ceramic Coating Agent abandons high-phosphorus formulas compared with traditional Phosphating Solution, drastically reducing sludge output while upgrading coating adhesion and corrosion resistance. The newly launched star product Metal Degreaser fits all metal substrates including aluminum, stainless steel, copper, coiled steel and carbon steel. It rapidly removes stamping and drawing grease under low temperature without substrate corrosion, and its cleaning wastewater is easy to treat. The matched Water-based Anti-rust Agent contains no volatile organic compounds and delivers long-term rust protection during long-distance sea transportation and storage, cutting clients’ scrap loss effectively.
The full portfolio of Metal Surface Pretreatment Chemicals has been verified by numerous factories worldwide with mature and stable performance, perfectly compatible with electrophoresis, electrostatic spraying and paint coating post-processes. Streamlined internal operation management reduces overall costs and delivers outstanding cost performance in the international market. Operating with integrity, Gerunwei has won the Trustworthy Business Commitment Unit medal. We are recruiting global distributors and end buyers now, welcoming overseas partners to visit our factory for sample testing and long-term cooperation negotiation. Gerunwei will continuously upgrade chemical formulas and empower global manufacturers to cut costs and carbon emissions with high-performance eco-friendly metal pretreatment chemicals.

