Focus on Global Green Coating Demand, Qingdao Gerunwei Expands Overseas Cooperation with Full Line Metal Surface Pretreatment Chemicals
As environmental regulations tighten across global manufacturing industries, phosphorus-free, low-emission and tailor-made pretreatment chemicals have become rigid industry demands. Qingdao Gerunwei Environmental Protection Technology Co., Ltd. takes full advantage of Qingdao’s integrated airport and seaport logistics to supply standardized and customized Metal Surface Pretreatment Chemicals worldwide. Our complete product portfolio includes Phosphating Solution, Metal Degreaser, Water-based Anti-rust Agent, Phosphorus-free Ceramic Coating Agent and Custom Pretreatment Chemicals, delivering low-cost and low-pollution full-process pre-coating solutions for overseas clients in new energy vehicles, construction machinery, photovoltaics, hardware and home appliances.
Located in Hongdao District, Qingdao, our factory is 13km away from Jiaodong International Airport, 8km from Hongdao High-speed Railway Station and adjacent to Qingdao Port logistics hub. Bulk chemical cargo can be shipped by air or sea rapidly to greatly shorten lead times for international buyers. Our automated production lines deliver an annual output of over 12,000 tons to support long-term mass orders from large overseas manufacturers. All production procedures comply with ISO9001 Quality Management System and ISO14001 Environmental Management System. Eco-friendly raw materials are adopted to reduce waste water and residue discharge, meeting environmental access standards of EU, Southeast Asia, Middle East and other regions.
Our independent R&D team serves as the core strength to adapt to diverse overseas production conditions. We develop and adjust exclusive Custom Pretreatment Chemicals based on clients’ workpiece materials, production temperature and local emission standards to realize one-on-one formula customization. Our flagship Phosphorus-free Ceramic Coating Agent replaces traditional high-phosphorus Phosphating Solution. Its phosphorus-free formula cuts wastewater treatment investment while improving coating adhesion and corrosion resistance. The matched Metal Degreaser is specially designed for aluminum, stainless steel, copper and coiled steel, offering low-temperature cleaning without substrate corrosion and complete removal of stamping grease. The star product Water-based Anti-rust Agent contains no volatile organic solvents and provides long-term rust protection during sea transportation and long storage, eliminating scrap losses caused by cross-border corrosion.
The full range of Metal Surface Pretreatment Chemicals has been widely verified by global production lines with mature and stable performance, perfectly compatible with electrophoresis, paint spraying and electrostatic coating post-processes. Streamlined internal operation and mass production scale help us lower overall costs, making our products highly cost-competitive in international markets. Honored as Trustworthy Business Commitment Unit for integrity-oriented operation, Gerunwei now recruits global distributors and large end buyers. Overseas purchasers are welcome to visit our factory for sample testing and long-term cooperation negotiation. Gerunwei will continuously upgrade eco-friendly chemical formulas and assist global manufacturers in green production transformation with high-performance, low-cost and customizable metal pretreatment chemicals.

