Reactive bio diluents

Choose your reactive diluent family

Use the routes below to navigate the collection by the type of behaviour you want the diluent to contribute to the final formulation.

• Controlled viscosity reduction for SLA, DLP and LCD resin formulation workflows.
• Support for improved resin flow, recoating behaviour and processing stability.
• Behaviour-specific reactive diluent options, from rigid and hard to foldable and elastic.
• Useful for industrial, dental, medical and research users seeking customized resin performance.

Typical use scenarios across the collection

This collection is relevant for users fine-tuning resin processability and final behaviour under demanding formulation or printing conditions.

• High-resolution printing: lowering viscosity to improve fine-feature formation and smoother recoating.
• Filled or high-viscosity formulations: improving flow and handling where resin movement is otherwise limited.
• Printer-specific optimisation: adapting resin behaviour to different SLA, DLP and LCD platforms.
• Process stability tuning: improving consistency, repeatability and handling across print cycles.
• Custom resin development: adjusting viscosity, wavelength response, functionality or application-specific formulation targets.

How to choose the right reactive diluent

Select the most suitable route according to the formulation behaviour you want to introduce while reducing viscosity in a controlled manner.

• Need rigid viscosity reduction with higher heat-resistance contribution → Thinner 3Dresyn RHDT Bio
• Need rigid behaviour without the stronger HDT positioning → Thinner 3Dresyn R Bio
• Need hard behaviour → Thinner 3Dresyn H Bio
• Need tough and foldable contribution → Thinner 3Dresyn TF Bio
• Need elastic contribution → Thinner 3Dresyn E or Thinner 3Dresyn E MF Bio
• Need monomer-free fast/tough or elastic route → Thinner 3Dresyn SFT MF Bio or Thinner 3Dresyn E MF Bio

• Prioritise biocompatible and bio-based positioning → choose Bio grades where available
• Prioritise monomer-free formulation logic → choose MF grades where available
• Prioritise maximum flow improvement → consider the lowest-viscosity route compatible with the target mechanical profile

Decision tree summary

Use this simplified logic before detailed formulation validation.

• Need higher-temperature rigid contribution → RHDT Bio
• Need rigid contribution → R Bio
• Need hard contribution → H Bio
• Need toughness and foldability → TF Bio
• Need elastic behaviour → E or E MF Bio
• Need monomer-free fast / tough route → SFT MF Bio

Then validate the final formulation under the intended printer, pigment/filler loading, temperature conditions, exposure window and post-curing protocol.

Rigid and rigid high-temperature reactive diluents

For formulations that need strong viscosity reduction while preserving or introducing rigid behaviour, including a higher-HDT route where relevant.

Hard reactive diluent

For users looking to reduce viscosity while keeping the formulation on the hard side of the mechanical spectrum.

Tough, foldable and fast-tough monomer-free routes

For formulations where viscosity reduction needs to be combined with tougher, more foldable or faster-processing behaviour.

Elastic reactive diluents

For formulations requiring strong viscosity reduction while preserving or introducing elastic behaviour.

Monomer-free reactive diluent options

For users prioritising monomer-free formulation logic alongside viscosity tuning and controlled printability.

A formulation-tuning platform rather than a single-thinner approach

This collection is structured around behaviour-specific reactive diluents so users can tune viscosity without treating all thinning routes as equivalent.

• Rigid routes cover general rigid and higher-temperature rigid formulation logic.
• Hard route supports harder resin profiles where controlled viscosity reduction is needed.
• Tough / foldable route supports lower-viscosity flexible-tough formulation strategies.
• Elastic routes support elastic resin tuning, including a monomer-free bio-based option.
• MF routes help users prioritise monomer-free formulation pathways where available.

The right diluent depends on the base resin, not only on the target viscosity

Reactive diluents should be selected not just for how much they lower viscosity, but for how they influence curing response, flow behaviour, recoating, shrinkage and the final mechanical profile of the resin system.

In practice, the best route is to start from the target formulation behaviour, then validate the diluent level under the intended printer, temperature, exposure and post-curing conditions.

Documentation, optimisation help and custom formulation support

Use the resources below to move from diluent preselection to formulation optimisation, process validation or project-specific technical support.

Select the right reactive diluent and validate the final resin workflow

Use the behaviour-based navigation above to identify the most relevant reactive diluent route, compare candidates in the technical overview table, and move forward with formulation-specific validation for SLA, DLP or LCD printing.