Top-Quality Rosin Core Solder Wire and Flux for Perfect Soldering

At Kothari Metsol, we manufacture rosin core solder wire and solder wire with flux trusted by industries for over four decades. Our solder wire and flux are made from virgin non-ferrous metal ingots using advanced technology for uniform alloy composition and high flux consistency. This ensures perfect soldering performance every time.

We are known for producing high-quality rosin core solder wire used across electrical, electronics, and lamp manufacturing industries. The unique solder wire with flux offers fast wetting action, clean joints, and long-lasting results.

Superior Performance: Our rosin core solder wire ensures quick melting, clean flow, and strong joints.

High Purity: Made from top-grade materials, our solder wire and flux reduce oxidation and contamination.

Ease of Use: Smooth melting and easy application make soldering fast and efficient.

Wide Applications: Perfect for electronics, electrical, automotive, and lamp industries.

Environment Friendly: Available in leaded and lead-free options to support eco-friendly soldering.

Compliance: Every batch of solder wire with flux meets strict industry standards for safety and reliability.

Choose Kothari Metsol for rosin core solder wire and flux that deliver durability, performance, and ease of use.

1. Raw Material Selection: We use premium virgin metal ingots to make solder wire and flux of consistent quality. This ensures clean solder joints and stable conductivity.

2. Melting and Alloy Composition: Our solder wire with flux is made by melting tin with lead or lead-free alloys like tin-silver or tin-copper. The core is filled with rosin-based flux, ensuring smooth, oxidation-free soldering.

3. Wire Drawing: The molten alloy is drawn into wires from 10 SWG to 26 SWG, meeting customer specifications. The wire is then cooled for strength and shape stability.

4. Flux Core Insertion: The flux core (Water White WW Grade Rosin) is inserted into the wire center. This rosin core solder wire prevents oxidation and promotes clean solder joints.

5. Annealing for Flexibility: The wire is heated and softened for better handling, ensuring flexibility and smooth application during soldering.

6. Coating and Surface Treatment: Each rosin core solder wire is treated to resist corrosion, ensuring long-term performance in different working conditions.

7. Spooling and Packaging: The solder wire with flux is neatly spooled in 500 gm, 3 kg, 4 kg, or 10 kg packaging to prevent tangling and damage.

8. Quality Testing: Every batch undergoes tests for flux consistency, melting point, diameter accuracy, and solder joint strength.

9. Final Inspection: We ensure every rosin core solder wire and flux spool meets quality and performance standards before delivery.

Electronics and Electrical Industry: Solder wire with flux is essential for assembling PCBs, connecting resistors, capacitors, and chips. The rosin flux removes oxides, creating strong and reliable joints.

Automotive Industry: Our flux core solder wire ensures precise wiring connections in vehicles. It prevents oxidation, ensuring long-lasting and corrosion-free joints in harsh conditions.

Aerospace and Telecommunication: In aerospace, solder wire and flux provide reliable joints that resist vibration and temperature changes. In telecom, it ensures stable connections for smooth signal transmission.

If you need rosin core solder wire that ensures clean joints, fast melting, and high reliability, Kothari Metsol is your trusted partner. Get strong, reliable, and corrosion-resistant solder joints. Choose from multiple sizes and alloy combinations. Contact us today for bulk or custom orders!