Rheology of our 3Dresyns

Our 3Dresyns are formulated across a broad viscosity range so that rheology can be matched to the intended printing process, printer conditions and target performance.

SLA, DLP & LCD 3D resins

From a rheological (viscosity) perspective, our SLA, DLP & LCD 3Dresyns are formulated to support pigment and colour stability while covering a broad viscosity range according to the targeted process, performance and application.

Some formulations exhibit ultra-low viscosities, such as <20 mPas at 20ºC (close to water at 1 mPas), while others have been intentionally designed with high viscosities up to ~10,000 mPas at 20ºC to support different processing, mechanical and dimensional-performance targets.

Several engineering material families, such as 3Dresyns "like" best engineering plastics , are available with higher-viscosity processing profiles where required by the formulation and target workflow.

These relatively high-viscosity resins are available in different viscosity versions:

• HV – Higher Viscosity versions: higher-viscosity processing profile; may support different mechanical-performance targets depending on formulation and validated workflow, with higher peel/flow resistance.
  • HV versions are ideal for printers equipped with heating systems (>25ºC).
• LV – Lower Viscosity versions: lower-viscosity processing profile with reduced peel/flow resistance; final properties remain formulation- and workflow-dependent.
  • LV versions can typically be printed without heating if ambient temperature is 20–25ºC.
  • Pre-heating or in-print heating further reduces peeling forces.

Learn more about the benefits of printing with heated printers . For a small investment (~50 €), a heating unit can often be retrofitted to existing printers.

Inkjet resins

Inkjet 3Dresyns are supplied with extremely low viscosities: <20 mPas at 70ºC and <15 mPas at 80ºC. Our colored Inkjet 3Dresyns for both MultiJet and PolyJet systems show excellent long-term stability with no pigment settling.

Reactive bio diluents

Several 3Dresyn reactive thinners and diluents have been developed to reduce viscosity when required. In most cases, they are not necessary for printing, but they can be useful when a lower-viscosity processing profile is required. See also: potential health problems of monomer-based 3D resins.

• Thinner 3Dresyn RHDT Bio : rigid Bio diluent designed to increase HDT (>160ºC) while reducing viscosity. Very low viscosity (<150 mPas).
• Thinner 3Dresyn R Bio : rigid Bio reactive diluent with HDT >110ºC and ultra-low viscosity (<15 mPas).
• Thinner 3Dresyn H Bio : hard bio-based diluent (<150 mPas) for Shore D <80 resins, increasing hardness and cure speed even at <10% addition.
• Thinner 3Dresyn SFT MF Bio : super fast & tough monomer-free diluent (<300 mPas) to boost cure speed, especially for low-power printers.
• Thinner 3Dresyn TF Bio : tough & foldable diluent with ultra-low viscosity (<20 mPas) to enhance toughness and flexibility.
• Thinner 3Dresyn E : elastic diluent (<10 mPas) designed to reduce viscosity while targeting increased elasticity and flexibility.

Note: Viscosity units are expressed in centipoise (cps) or milliPascal-second (mPas). 1 cps = 1 mPas.