Explore our engineering formulations designed for superior corrosion protection, bright finishes, and efficient deposition kinetics.
SUZHOU HIYIE CHEMICAL CO., LTD is a premier, innovation-led manufacturer of organic electroplating additives and surface finishing chemistries. Our comprehensive product portfolio serves high-precision industry sectors, including consumer electronics, automotive hardware, communication equipment, semiconductor manufacturing, and decorative craft products.
By collaborating with leading local and international chemical companies and academic research institutions, we operate dynamic R&D nodes in Shanghai and Wuhan. Our extensive market network covers critical production centers in the Pearl River Delta, Yangtze River Delta, and the Bohai Rim. We are proud partners to global organizations including Foxconn Technology Group, Qinghai Salt Lake Group, Chint Group, Hongbao Group, Stanley Group, and Shifeng Group.
Discover More About HiyieIn contemporary metal finishing, galvanic zinc coating remains the preeminent technique for cathodic protection of steel substrates. By applying a sacrificial layer of zinc or zinc-alloy, the substrate remains electrochemically shielded from aggressive oxygen and moisture environments. The design of modern zinc plating baths must achieve a balancing act: optimizing current efficiency, metal distribution, and environmental safety.
Historically, cyanide-based zinc baths offered superior throwing power and tolerance to surface contaminants. However, regulatory frameworks like REACH, RoHS 3.0, and OSHA workplace directives have forced the industry towards cyanide-free formulations.
Hiyie’s advanced alkaline cyanide-free zinc plating (e.g., our 8315 system) utilizes complexing agents that mimic the coordination chemistry of cyanide, without the toxicity. This provides a highly uniform, low-stress zinc deposition with exceptional thickness distribution across complex geometries, such as deep recesses and threaded components.
For extreme operational environments, traditional zinc coatings can fall short. Galvanic zinc-nickel alloy coatings (specifically those yielding 12-15% nickel content) offer up to ten times the corrosion resistance of standard zinc coatings.
Under ASTM B117 salt spray testing, trivalent passivated zinc-nickel coatings (utilizing Hiyie 6185 and ZN-318) routinely withstand over 1000 hours of exposure before the emergence of red rust. The phase structure of the deposit prevents galvanic corrosion when in contact with lightweight aluminum components, a critical specification for modern electric vehicle (EV) chassis systems.
Unprotected electroplated zinc is highly reactive, forming white rust quickly. Post-treatment passivation is critical. Hexavalent chromium (Cr6+) has been phased out globally due to its carcinogenic nature.
Our 216 High Corrosion-resistant Iridescent Trivalent Zinc Passivation generates a robust, self-healing conversion coating. Formulated with nanotechnology-stabilized trivalent chromium (Cr3+) and specialized nanoparticles, it provides the characteristic iridescent appearance and chemical barrier properties once only achievable with hexavalent chrome.
Combining R&D expertise, localized technical support, and ecological sustainability to optimize your surface finishing operations.
We deploy senior chemical engineers and dedicated technical sales professionals to provide on-site line setup, bath analysis, and troubleshooting, ensuring maximum plating line uptime.
Operating dual R&D centers in Shanghai and Wuhan, we develop custom organic additives and brightener formulations tailored to specific customer substrate requirements and cycle times.
We prioritize sustainable electrochemistry, developing zero-cyanide copper, lead-free electroless nickel, and hexavalent-free trivalent passivation lines to secure your environmental permits.
Our rapid-response service team supports international clients through analysis, process auditing, and remote video diagnostics, bringing peace of mind to operations globally.
Securing specialty chemicals requires reliable partners. Suzhou Hiyie Chemical maintains raw material strategic reserves to buffer against market volatility. Our automated chemical blending plants ensure batch-to-batch consistency, a key requirement for high-volume automated plating operations.
Whether your project requires ocean transport, rail freight across the Eurasian land bridge, or expedited air cargo, we manage compliance packaging, export documentation, and hazardous material transport certifications.
Plating baths are dynamic systems. We provide technical data sheets (TDS), material safety data sheets (MSDS), and ongoing analytical services (such as Hull Cell testing guidance) to help operators adjust parameters locally to meet OEM standards.
Years R&D Experience
Hrs Salt Spray Performance
Global Plating Partners
RoHS/REACH Compliant Products
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Explore our wider catalog of plating carriers, passivation steps, and specialty alloy systems designed to optimize coating lines.
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The Snake ushers in blessings as we bid the old year farewell; The Horse brings spring as we embark on a new journey. The New Year bell rings the prelude to progress, driving our team toward new breakthroughs in sustainable electroplating technology. We remain committed to helping our global clients meet changing regulations and maintain production efficiency.
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