• Removal of flux residues
  • Vapor phase process
  • Excellent cleaning performance & low HSE impact
  • 3M Novec 71DA, Novec 72DA replacement

PROMOSOLV 70ES is developed as a drop-in replacement for trichlorethylene, NPB and other solvent. While reducing substantially the HSE impact, the defluxing power is at an equivalent level.

It is dedicated for removing reflowed flux residues and other contaminants on PCBA’s, Power modules, lead frames, BGA’s, PoP or SIP applications & LED assemblies. Its low surface tension allows very well cleaning and rinsing under low stand-off components and difficult to reach spaces. It has very good compatible with all metals, including very sensitive ones and also with most plastics & elastomers, however recommended to validate before use.

PROMOSOLV 70ES is formulated with safety in mind. Its composition gives excellent flammability suppression properties, which provides a very high stability when used in an equipment. Some products in the market may loose their flammability suppression compound due to evaporation when used in an equipment.

This product also exists in a recycled version (made from recycled solvent) under the name PROMOSOLV 70ES T

PROMOSOLV 70ES is a drop-in  replacement for 3M Novec 71DA and Novec 72DA which are scheduled to be phased out voluntarily by end 2025. Click on the link for more info on the announcement of 3M Novec phase out.

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



  • Thermally and chemically stable in use
  • The very low surface tension allows deep rinsing under low stand-off components
  • Short cleaning, rinsing and drying times


  • Continuous recycling in equipment for a long bath-life
  • Can be returned for recycling and re-use
  • The relative high boiling point reduces risk of solvent drag, so limiting consumption


  • Very low toxicity (refer to the SDS)
  • No Ozon Depletion Potential (ODP) & low Global Warming Potential (GDP)
  • Non-flammable

Process examples

The best process will depend on factors such as operating conditions, equipment, desired cleaning time and the nature of contaminants. Our team is ready to advise you.


  • Do not remove parts too quick out of the drying zone to prevent unwanted loss of solvent.
  • Compatibility report of PROMOSOLV 70ES with different materials is available on request.
  • In case of very heavy production load, Promosolv AD70 additive can be added to increase solubility of solder fluxes.
  • It is recommended to work with a siliporite filter to separate water from the condensation loop.