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.

Non corrosive Paste and Paints

Composite brazing flux is the material of choice for selective brazing processes. It is a pre-formulated paste composite material integrally mixed from brazing filler powder, aluminum brazing flux, carrier medium and various functional additives in scientifically optimized proportions. Compatible with multiple coating processes including pre-spraying, roll coating, screen printing, inkjet printing and spot spraying, the product enables precise, quantitative deposition on workpiece areas to be brazed. It effectively controls flux consumption while significantly reducing post-braze residues and simplifying post-treatment procedures. It can be seamlessly integrated into automated production lines, improving workshop working conditions, stabilizing brazing quality and boosting overall production efficiency. As Solvay’s authorized China distributor for NOCOLOK®, Shanghai Canal International Trade Co., Ltd. supplies genuine composite aluminum brazing fluxes and delivers complete customized brazing technical support tailored to diverse operating conditions.

This product line includes 4 core models
Specification
Nocolok Flux Paste
Nocolok 7028-9028 Metallized Flux Paste
Nocolok Paint-F-Flux
Nocolok Al-FLUX 0726 Flux Paste
Application
应用于滚涂,印刷,点胶,喷射工艺的产品
应用于无复合层或进行补焊的产品
应用于预喷涂工艺的产品
应用于火焰焊,高频焊的腐蚀性钎剂产品
Technical Documents