• Removal of a wide range of contaminants
  • Vapor phase process
  • Medium cleaning power


3M™ announced in December 2022, that all Novec™ products will be phased out and not available anymore by the end of 2025. No worries, Inventec has a drop-in replacement for this product but we recommend to contact us as soon as possible in order to minimize supply interruptions.

If you want to know more about the 3M™ products phase-out, click on the this link.


  • PROMOSOLV 70 -> Similar properties & applications
  • PROMOSOLV NEO B1 -> Similar properties & applications + NO GWP & PFAS FREE

3M Novec 71DE

3M™ Novec™ 71DE Engineered Fluid is a hydrofluoroether, Methyl Nonafluorobutyl Ether (C4F9OCH3), in an azeotrope formulation with trans-1,2-dichloroethylene (t-DCE). This mixture is a true azeotrope, with constant vapor and liquid composition at its boiling point.

This fluid is ideal for medium-duty cleaning and degreasing tasks, as well as specialty solvent applications, and is intended to replace ozone-depleting materials in many applications. It has zero ozone depletion potential and other favorable environmental properties.

Novec 71DE fluid has a time-weighted average exposure guideline of 750 ppm (eight hour average) for the 3M™ Novec™ 7100 Engineered Fluid component, and 200 ppm (eight hour average) for trans-1,2-dichloroethylene (t-DCE). These exposure guidelines suggest there is a large margin of safety for use of Novec 71DE fluid in its intended cleaning applications.

The increased solvency and low surface tension, nonflammability and constant composition during boiling of Novec 71DE fluid make it ideal for immersion and vapor degreasing applications. These properties also may make the azeotrope ideal for certain coating and lubricant deposition applications where increased solvency is required.


Letter from 3M – Inventec authorized distributor for EMEA area

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.