Reactive rigidity/flexibility adjusters
Reactive rigidity and flexibility adjusters for precise mechanical tuning of photopolymer 3D resins, enabling controlled network adjustment and application-driven performance balancing.
3Dresyns® adjusters in this collection are designed for formulation projects where rigidity, hardness, softness, flexibility and crosslink density must be tuned more precisely than with a base resin alone.
Navigate by: rigidity route, flexibility route, crosslinking route and thermal-performance boosting route.
This collection groups reactive property modifiers for tuning rigidity versus flexibility, enabling controlled network adjustment and mechanical-property balancing across different Shore ranges depending on the target.
These materials are positioned for printer-specific optimization, flexible-to-rigid grade development and formulation-versatility projects in engineering, medical and healthcare-oriented workflows.
Key features & benefits
Choose your property-adjustment family
Use the routes below to navigate the collection by the type of mechanical adjustment you want to introduce.
- Reactive property modifiers for tuning rigidity versus flexibility.
- Controlled network adjustment for application-driven performance.
- Mechanical property balancing across Shore ranges depending on target.
- Improved formulation versatility for printer-specific and project-specific development.
Typical applications
Typical use scenarios across the collection
This collection is suitable for workflows where the base resin needs to be fine-tuned toward a more rigid, more flexible or more thermally resistant property window.
- Custom mechanical tuning: adjusting hardness, softness and deformation behaviour in formulation development.
- Stiffness and toughness balancing: tuning trade-offs between rigidity and damage tolerance.
- Flexible-to-rigid grade development: creating intermediate or application-specific mechanical profiles.
- Printer-specific resin optimization: adapting materials to the process behaviour of a specific machine.
- Application-driven formulation projects: designing resin systems to meet targeted functional outcomes.
Why choose this collection
How to choose the right rigidity or flexibility adjuster
Select the most suitable route according to whether the main goal is stronger rigidity, softer flexibility, more crosslink density or higher heat-deflection performance.
- Need significant rigidity adjustment with high-viscosity route → choose HA1 HV MF Bio
- Need detailed rigidity adjustment with low-viscosity route → choose HA2 LV Bio or HA3 LV MF Bio
- Need significant flexibility adjustment → choose SA1 HV Bio
- Need detailed flexibility adjustment with low viscosity → choose SA2 LV Bio
- Need crosslinking-based rigidity increase → choose XL1 Bio
- Need higher HDT through additive tuning → choose HDT1 Bio
- Prioritise large formulation shifts → start with the high-viscosity HA1 or SA1 routes
- Prioritise finer formulation control → start with the low-viscosity HA2, HA3 or SA2 routes
- Prioritise network-density increase → start with XL1 Bio
- Prioritise thermal resistance improvement → start with HDT1 Bio
Decision tree summary
Use this simplified logic before detailed formulation validation.
- Need more rigidity → HA1 / HA2 / HA3
- Need more flexibility or softness → SA1 / SA2
- Need more crosslink-driven rigidity → XL1
- Need higher HDT → HDT1
Then validate the final route under the intended resin chemistry, modifier loading, exposure strategy and post-curing protocol.
Products in this collection
Rigidity and hardness adjusters
For workflows requiring higher rigidity, stronger hardness or more controlled rigid-network behaviour in the final resin system.
Softness and flexibility adjusters
For workflows requiring softer response, more flexibility or more detailed tuning of compliant behaviour in the final resin.
Crosslinker for rigidity adjustment
For workflows where rigidity is increased through crosslink-density tuning rather than only through conventional hardness adjustment.
Heat Deflection Temperature booster
For workflows where the main requirement is a custom increase in HDT while keeping the rest of the resin system under controlled formulation adjustment.
Technical overview table
Workflow-dependent performance
Final rigidity, flexibility, crosslink density, viscosity balance and thermal performance depend on the interaction between the selected adjuster, the base resin, modifier loading and the curing/post-curing workflow.
Successful implementation therefore requires alignment between modifier selection, formulation target, resin chemistry and qualified processing conditions.
| Material | Primary role | Viscosity / route logic | Main behavior | Typical positioning | Target workflow |
|---|---|---|---|---|---|
| HA1 HV MF Bio | Rigidity and hardness adjuster | High viscosity / significant shift | Significant rigidity adjustment | Projects needing larger rigid-property movement | Reactive tuning of rigid resin behaviour |
| HA2 LV Bio | Rigidity and hardness adjuster | Low viscosity / detailed control | Detailed rigidity adjustment | Projects needing finer rigid-property tuning | Reactive tuning of rigid resin behaviour |
| HA3 LV MF Bio | Rigidity and hardness adjuster | Low viscosity / rigidity tuning | Rigidity adjustment with low-viscosity route | Biocompatible rigid-tuning projects | Reactive tuning of rigid resin behaviour |
| SA1 HV Bio | Softness and flexibility adjuster | High viscosity / significant shift | Significant flexibility adjustment | Projects needing larger compliant-property movement | Reactive tuning of softness and flexibility |
| SA2 LV Bio | Flexibility and softness adjuster | Low viscosity / detailed control | Detailed flexibility adjustment | Biocompatible flexibility-tuning projects | Reactive tuning of softness and flexibility |
| XL1 Bio | Crosslinker | Crosslink-density route | Rigidity increase via crosslinking | Formulation projects needing network-density tuning | Crosslink-driven rigidity adjustment |
| HDT1 Bio | HDT booster | Thermal-performance route | Custom increase of Heat Deflection Temperature | Projects needing higher thermal resistance | HDT-focused formulation tuning |
Mobile: scroll horizontally to view all columns. The first column remains visible while scrolling.
Portfolio overview
A full mechanical-tuning platform rather than a single modifier
This collection is structured around four complementary tuning logics: rigidity/hardness adjustment, softness/flexibility adjustment, crosslink-driven rigidity increase and HDT boosting.
- HA1, HA2 and HA3 cover rigidity and hardness tuning routes.
- SA1 and SA2 cover softness and flexibility tuning routes.
- XL1 adds a crosslinking-based route for rigidity increase.
- HDT1 adds a thermal-performance boosting route.
Workflow note
The right route depends on the property target, not only on the additive name
These modifiers are most useful when the target is clearly defined first: more rigidity, more flexibility, more crosslink density or higher HDT.
In practice, the correct path is to define the mechanical or thermal target first, then validate the modifier under the intended resin chemistry, loading window and processing conditions.
Technical and commercial support
Documentation, technical selection help and workflow support
Use the resources below to move from modifier preselection to formulation planning, printer-specific validation or broader technical support.
Final CTA
Select the right adjustment route and validate the final mechanical window
Use the route-based navigation above to identify the most relevant modifier, compare candidates in the technical overview table, and move forward with formulation-specific validation for rigidity, flexibility or thermal-performance tuning.
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From prototyping to industrial production, performance depends on materials, calibration and process control












