Project Description


Fluxes that deliver best in class soldering performance and electrical reliability, including options that improve worker safety and are better for the environment.

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Whether you are a hobbyist or manufacturing professional, engineer or a contractor, we are here to help you find a solution for your assembly application. Combining top name brands with expert support, your success is our priority!

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YunFang HWT-610 is a very robust, low-solid, rosin-containing flux which has been formulated such that no solder balls are formed and bridging are minimised. It provides excellent wettability on difficult-to-solder surfaces without causing any corrosion issue. This flux works well in both Lead-Free and Tin-Lead processes. The flux leaves a very thin transparent coat, which not only protects the board surface but also gives it additional aesthetic values.

YunFang HWT-600 is a no-clean flux formulated with a small percentage of rosin and non-halide activators. This rosin activation system promotes excellent wetting performance and yet maintains a long-term electrical reliability. Post soldering residue of HWT-600 is minimal, colorless, and slightly glossy.

YunFang HWT-701 is a rosin-containing full dulling flux that provides the best of solderability for conventional and circuit board assemblies in both Lead-Free and Tin-Lead processes. Besides, it is designed to reduce bridging on bottom side SMT components as well as superior performance in hole-fill and solderballing. Additionally, it provides evenly spread flux and low-tack residues.

Technical Docs

Technical Data Sheet EN
Safety Data Sheet EN

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Support Services

offers a variety of solder and specialty products and technical support to assist any size customer.

Stencil Design Support

Solder paste defects may be prevented as early as the pre-design stage. The design of the stencil and its apertures is vital to ensure acceptable paste performance. Due to the importance of this parameter, Yunfang offers a stencil design support and consultation service.

Solder Joint Analysis

Yunfang Solder’s Reliability Analysis Program provides analytical support services such as solder joint and cleanliness analysis to ensure the integrity and reliability of these parts and assembled products before a failure occurs.

​Solder Analysis

The solder in a wave solder machine can become contaminated with other metals dissolved during the soldering process. Our solder support services include solder testing and analysis to help prevent defects.

Dross Reclamation

Our solder recycling service is easy, environmentally friendly, and complies with all federal, state, and provincial regulations. You will be provided with free reclamation buckets and shipping labels along with instructions for returning dross.

Consulting Services

Our solder support personnel will work with the customer’s process engineers and machine operators, sharing their expertise in soldering materials and applications, until the issue has been resolved completely.

Technical Training

In the ever-changing electronics assembly industry, it is often difficult to maintain the latest welding materials and process technology. Through Yunfang, customers enjoy more than just a strong supplier, but also a partner and coaching advantage.

Custom Service

Yunfang Metals offers a variety of additional value-added services, including Solder alloy, Rosin content, package, and label. With these value-added services, vast product offering, and knowledgeable customer service, it’s easy to see that Yunfang Metals is truly your one source for your complete Solder products needs.
For questions or to receive a quote, contact our sales team and they will be happy to assist you.


Do you need help with soldering? Fill out this form to get in touch.





8:00am – 6:00pm





8:00am – 6:00pm