Enviroset® 3D Jet Resin

Reduced Odor - Low VOC - Lower HAPs

Enviroset 3D Jet Resin, is a low viscosity thermosetting furan resin that has been specially manufactured for use in all 3D Printers for sand cores and molds and is suitable for use with all types of metal. This furan resin offers a number of features and benefits that set it apart from conventional furan resins on the market:


  • Contains no nitrogen
  • Low water
  • Non-reportable formaldehyde and phenol
  • Low viscosity
  • High tensile strength


  • Increased productivity – resin helps print heads to last longer
  • Reduced labor – printed molds and cores are cleaned faster
  • Reduced costs – resin is very economical


Enviroset 3D Jet Resin is a thermosetting furan resin that will react in the presence of a strong acid catalyst at ambient temperatures to form a cured binder. The low viscosity resin has been specially manufactured for use in all sand core and mold 3D printers. This resin can be used to make castings with all types of metals.

Typically the amount of Enviroset 3D Jet Resin applied to the sand will range between 1.0% and 1.5% resin, based on the weight of the sand. The quantity of acid used in the sand mix is dependent upon the type and strength of the acid, but normally ranges between 18% and 24% based on the weight of the Enviroset 3D Jet Resin. Recommended acid catalysts (activator) for pre-treating the printing substrate are TW-40 for highest strength and TC-50 for fastest part cleaning and highest resolution.

Recommended practice when using Enviroset 3D Jet Resin is to start with a clean, washed and dried silica sand or aggregate. The acid should be the first added and thoroughly mixed with the sand or aggregate. The resin is then injected through the print head onto the sand/substrate after the sand has been placed. Caution should be exercised to prevent the liquid resin and acid components from coming into the direct contact with one another since the resulting reaction can be very exothermic.


Typical Physical Properties

  • Viscosity @ 25ºC, cps <10
  • % Water <1.0
  • % Nitrogen 0
  • % Free Formaldehyde 0
  • % Furfuryl Alcohol 92
  • Density, pounds per gallon 9.34

Tech Data Sheet

Performance Characteristics

Measurable tensile strength begins to develop shortly after the Enviroset 3D Jet Resin is injected onto the sand mix containing the acid. The rate of strength development is related to the chemistry of the resin and the catalyst used. Tensile strength will vary due to the many factors known to affect binder performance: sand quality, sand temperature, mixing efficiency, etc.

Technical Assistance

HAI can help you optimize your operation, improve your performance, and help you chose components to meet all your core making needs. HAI will help you choose the right Part 1 to Part 2 ratios for your operation. Contact us today and let one of our experienced employees help you find the best binder to achieve your goals.