• N96,5AG3,5 lead free solder paste
  • No clean SMT printing process
  • Excellent low voiding for DCB

ECOREL FREE 300-31A is especially designed to minimize flux spattering, solder leaking and voiding to achieve consistent bond-line thickness (BLT) between the large chips and the DCB substrate. Oxide layer formation on copper surfaces causing color change is efficiently inhibited to achieve a shiny surface with nice surface cosmetics.
Sn96.5Ag3.5 alloy is an excellent option for DCB materials because of its good wetting properties, allowing easy flow and strong bonding. Additionally, it has been shown to have higher reliability compared to other alloys, making it more resistant to thermal fatigue and stress factors. Its strong, ductile joint can withstand mechanical stress and vibrations. Its lower melting, compared to alloys Like SnSb or leaded pastes makes it suitable for soldering heat-sensitive components.

The chemistry of this product is also available with other alloys or particle sizes on request.

This is not a product

Although fully in line with safety & environmental regulations, this product doesn`t match our strict criteria to be labelled as a Greenway product.



  • We currently don`t have a Greenway alternative but our target is to develop one in the near future. In case you want us to prioritize the development of a Greenway alternative, do not hesitate to contact us.
Discover more about Greenway



  • Low voiding to achieve consistent bond line thickness
  • Very good wetting, especially on copper surfaces
  • Low flux spattering & low residue spread


  • Minimized copper oxidation for higher first-pass yield
  • Minimized risks for wire-bonding defects


  • No halogen
  • Lead Free
  • Free of CMR containing substances

Process recommandation

The best process will depend on factors such as operating conditions, equipment, board or component design. Check our product datasheet for info on process recommendations. Be assured, our team is ready to advise and assist you in the implementation of our products.