Koki has just introduced the next evolution in its halogen-free solder paste range. The S3X58-HF1200 builds upon the proven performance of its predecessor, the HF1100, offering enhanced low voiding, print stability, and electrical reliability. Designed for automotive and high-reliability electronics, this advanced formulation continues Koki’s commitment to environmental compliance and superior soldering quality.
Halogen Free Solder Paste
Unmatched Performance with Next-Generation Technology
Koki has maintained its halogen-free commitment with the S3X58-HF1200, ensuring the same high-performance soldering quality customers expect while enhancing its capabilities. This innovation aligns with Fraser Technologies’ dedication to sustainability, allowing businesses to meet stringent environmental goals without sacrificing reliability or efficiency.
Key Features of the Koki S3X58-HF1200:
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Addressing Industry Challenges with Advanced Formulation:
With growing demands for high-performance PCB assembly and component quality, the Koki S3X58-HF1200 stands out by offering unparalleled void reduction and powerful wetting performance.
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Low Void Performance:
The 2-Step Flux Gas Discharge Effect significantly reduces voids, even in challenging component designs such as bottom electrodes.
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Enhanced Print Stability for Faster Cycle Times:
The newly designed flux formulation maintains viscosity during long continuous use, ensuring shape retention and stable paste print deposit contour. This minimises issues such as slumping, smearing, and bleeding, reducing stencil cleaning frequency and shortening cycle times.
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Powerful Wetting:
The innovative 2-Step Activation Boost Effect provides exceptional solder spread across various surface finishes, matching the performance of halogen-containing pastes.
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High Electrical Reliability:
Ensures superior insulation resistance and compatibility with conformal coatings, making it suitable for high-reliability applications.
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Halogen-Free:
Continuing the legacy of the HF1100, this formulation contains no artificial halogen additives, fully meeting environmental and compliance standards.
How the Revolutionary Dual ‘2-Step’ Technologies Work
2-Step Flux Gas Discharge Effect:
Step 1: Active Coagulation Effect -Controls flux behaviour to prevent void formation.
Step 2: Active Outflow Effect -Effectively removes gas, reducing voids even in complex components.
2-Step Activation Boost Effect:
Step 1: Activation Stabilizer Ensures solder paste stability for high print consistency.
Step 2: High-Temperature Activation Boost enhances wetting performance for superior soldering results.
Soldering Applications
Explore Koki’s Full Range of Soldering Solutions
The S3X58-HF1200 continues Koki’s legacy of halogen-free innovation and is just one of many industry-leading soldering products available. Fraser Technologies is proud to offer a complete selection of Koki solder pastes, fluxes, and wires designed for a wide range of applications.
Click to explore the full Koki range and find the perfect solution for your assembly needs.
Fraser Technologies: Bringing You the Best in Soldering Innovation
At Fraser Technologies, we are delighted to introduce the Koki S3X58-HF1200 to the UK market. Whether you need to reduce voiding, improve wettability, or optimise your overall assembly process, this solder paste offers a multifunctional solution that meets the evolving needs of modern electronics manufacturing.
2026 update : New extended shelf life and TDS available read more here
Solder Paste
Interested in trying the Koki S3X58-HF1200 for your production?
Get in Touch
To discuss how this groundbreaking solder paste can enhance your production process get in touch today for technical brochures, product performance tables and you can also request a free sample, with technical and analytical support via Fraser Technologies. We offer product trials and personalised support.
