Brazing Flux

Aluminum brazing flux is an essential chemical auxiliary for the aluminum brazing process. Its core functions include removing the dense aluminum oxide film on aluminum surfaces, forming a protective layer upon melting to prevent re-oxidation of base metals, reducing the interfacial tension of brazing filler metal, enabling adequate flow and spreading of the filler, and achieving reliable hermetic joints of aluminum materials. NOCOLOK® is a registered trademark of Solvay, a global chemical enterprise, and serves as the pioneering brand and worldwide industry benchmark for non-corrosive aluminum brazing fluxes. Products of this series are widely adopted in the brazing fabrication of aluminum radiators and various aluminum components for automotive, home appliance, energy storage, artificial intelligence equipment and other sectors. As the authorized distributor of Solvay NOCOLOK® series products in China, Shanghai Yunhe Materials Technology Co., Ltd. provides domestic customers with full-range NOCOLOK® aluminum brazing flux solutions and supply services tailored to diverse application scenarios.