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Halogen-Free / Lead-Free Soldering Products

In response to today's increasing environmental and health awareness,
Senju presents the Halogen-Free ECO Solder Series.

What is Halogen-Free?

In recent years, the awareness of environmental issues has grown worldwide and everyday use products are increasingly required to meet the most stringent safety standards.

In the soldering process, halogens are often used inside the flux activation system. Through a chemical reaction, halogens help to remove metal oxides from the solder and the metal surfaces to be soldered.

Some chemicals containing halogens are known to release dioxins when chemically altered. For example, automotive exhaust and even some types of plastic packaging used for food storage may release dioxins during incineration.
Of course, reducing the release of these highly toxic materials is a primary health and environmental concern.

Senju has been a leader in the development and supply of the environmentally friendly ECOSOLDER Lead-Free products and is now presenting a range of products meeting the Halogen-Free requirements.

Halogen-Free Soldering Products


* Please contact sales for samples and further technical details.

Halogen-Free E.S. M705-SHF Paste Series

The M705-SHF Series pastes are free of halogens, while maintaining the same high-reliability soldering ability as our conventional products.

  • NO intentionally added halogens
  • Reflow: AIR or N2 capable
  • Halogen Content:
    - Less than 900ppm each (Cl/Br/F)
    - Less than 1500ppm in combination
  • Activity: Oxide removal equal to or better than conventional products
  • Stability: Excellent continuous printing process stabilityr samples and further technical details.

Halogen-Free ES-Z Series Liquid Flux

Sparkle Flux is developed for use in Lead-Free soldering of PC boards.
Halogen-Free resin type flux with outstanding processing characteristics and excellent post-soldering residue allowing for non-clean processing.

  • NO intentionally added halogens
  • Halogen Content:
    - Less than 900ppm each (Cl/Br/F)
    - Less than 1500ppm in combination
  • Free of Antimony and Red Phosphorus
  • Less tacky flux residue
  • Flux residue is less sticky, easy handling
  • No antimony, no red phosphorus

Halogen-Free H2F Resin Cored Wire

H2F is a halogen free wire solder meeting the latest requirements while maintaining similar soldering ability to more conventional rosin cored wire products.

  • NO intentionally added halogens
  • Halogen Content:
    - Less than 900ppm each (Cl/Br/F)
    - Less than 1500ppm in combination
  • JIS Z-3283 AA type resin
  • Clear colored residue