Products / Solder Wire / Rosin Flux Core Solder Wire
Top Quality Flux Solder Wire for Perfect Soldering
Our Flux Core Solder Wire is manufactured from virgin quality Non-Ferrous Metal Ingots. Advanced manufacturing technology ensures homogeneous alloy, correct composition, and Flux Consistency throughout the wire. Our Rosin core solder wire has virtually dominated the field of activated rosin core solders for well over four decades. An outstanding performance feature of flux core solder is the “instant-action” wetting behaviour. The high mobility and fast-spreading action of this flux results in more reliability. The Rosin used is Water White WW Grade rosin. Also, the flux core solder will be Non-Corrosive and Mildly Activated in nature, making the cleaning operation after soldering redundant other than for aesthetic purposes. The application of this flux solder wire is vast in industries like lamp industries and electrical and electronic assembly.

Applications of Flux Core Solder in Various Industries
Rosin flux core solder is a critical component in many industries due to its efficient wetting properties and ability to remove surface oxides, ensuring reliable and clean solder joints. In the electronics industry, flux core solder is essential for assembling printed circuit boards (PCBs), and connecting components such as resistors, capacitors, and microchips. The flux solder wire cleans and prepares metal surfaces, creating strong electrical connections that enhance the performance and longevity of electronic devices. Its high-mobility flux allows for precise soldering, even on densely packed boards, making it indispensable in modern electronics manufacturing.
In the automotive industry, flux core solder is widely used for wiring and electrical systems. Given the complexity of modern vehicles with their advanced electronic systems, reliable solder joints are crucial for safety and performance. Flux solder wire helps automotive engineers connect intricate circuits, ensuring seamless communication between sensors, control units, and other electrical components. The rosin flux helps eliminate oxidation, providing corrosion-resistant joints, which are vital for vehicles exposed to various environmental conditions.
Apart from electronics and automotive applications, flux core solder plays a significant role in the aerospace and telecommunication industries. Aerospace components often require high-reliability soldering to withstand extreme conditions such as temperature fluctuations and vibration. Flux solder wire ensures that electrical connections remain intact, supporting the durability of critical systems. In telecommunications, the wire is used in the assembly of communication devices and infrastructure, ensuring strong and stable connections for optimal signal transmission.
Flux Solder Wire Manufacturing: Our Step-by-Step Process
Raw Material Selection for Flux Solder Wire: The process begins with the careful selection of high-quality raw materials. For flux solder wire, Our Flux Core Solder uses premium virgin Non-Ferrous Metal Ingots to ensure the best possible alloy composition. The choice of metal ensures purity, which is vital for achieving strong and reliable solder joints. This also helps to maintain the integrity of the wire throughout the production process.
Melting and Alloy Composition:After selecting the raw materials, the metals are carefully melted to create the solder alloy. For flux solder wire, the composition typically includes tin combined with lead or lead-free options like tin-silver or tin-copper. In the case of flux core solder, we mix a specially formulated rosin-based flux material that will later be inserted into the core of the solder wire. The precise formulation of the alloy ensures excellent conductivity and durability
Wire Drawing Process The molten alloy is then drawn through a series of progressively smaller dies to form the desired wire diameter. The flux solder wire is carefully drawn to various sizes, such as 10 SWG to 26 SWG, depending on the customer’s specifications. During this stage, the wire is cooled and solidified, ensuring it retains its shape and strength.
Flux Core Insertion (for Flux Core Solder):For flux core solder, a critical step is inserting the flux into the centre of the wire. The flux solder wire is hollowed out using precise machinery, and a high-quality flux, often rosin-based (Water White WW Grade rosin), is inserted into the core. This flux plays a key role in ensuring a smooth, clean soldering process by preventing oxidation and improving the wetting behaviour during soldering.
Annealing for Flexibility:Once the wire is drawn and flux is inserted into the core, the flux core solder undergoes an annealing process. In a controlled heating environment, the wire is heated to a specific temperature to soften it, making it more flexible. This process allows the wire to maintain its strength while becoming easier to handle during the soldering process.
Coating and Surface Treatment:After annealing, flux solder wire may undergo a surface treatment or coating process to enhance its corrosion resistance. This step is crucial, especially for wires that will be used in harsh or high-moisture environments. The coating helps to preserve the quality of the solder joints and ensures that the wire remains functional over an extended period.Spooling and Packaging:Once the flux core solder has been treated and cooled, it is wound onto spools or coils of varying sizes, depending on customer requirements. The spooling process is done carefully to prevent the wire from tangling or becoming damaged. Each spool is then carefully packed to protect the wire from moisture and other environmental factors that could affect its quality.
Final Inspection and Delivery: Each batch of flux core solder wire undergoes stringent quality control tests. These tests include verifying the consistency of the flux core, ensuring that the solder wire melts at the correct temperature, and checking for uniformity in the wire diameter. The wire is also tested for its ability to form clean, reliable joints and ensure that it meets industry standards.
Why choose our reliable Flux Core Solder?
Superior Performance: Our Flux Core Solder is engineered to provide excellent soldering performance, ensuring strong and reliable joints for various applications.
High Purity: Manufactured with advanced techniques and stringent quality control, our Flux Solder Wire guarantees the highest standards of purity, reducing the risk of contamination and improving overall performance.
Ease of Use: Designed for ease of application, our Flux Solder Wire melts smoothly and spreads evenly, making your soldering tasks more efficient and hassle-free.
Versatility: Suitable for a wide range of industries, including electronics, electrical, automotive, and more, our Flux Solder Wire meets diverse soldering needs with consistent quality.
Compliance with Standards: Our Flux Solder Wire complies with industry standards, ensuring safety and reliability in every use.
Environmentally Friendly Options: We offer both leadless solder wire & Flux Solder Wire options, contributing to a safer and healthier environment by minimizing the harmful effects of lead.
Choose our reliable Flux Solder Wire & flux core solder for superior performance, ease of use, and exceptional quality across various applications.Contact us to know more!
Composition
- Tin/ Lead
- Tin / Silver / Copper
- Tin / Copper
- Tin / Silver
- 10 swg to 26 swg
- Spools of 500 gm, 3 kg, 4 kg, 10 kg