4Dresyn TF-HV1, Tough & Foldable High Viscosity 4D resin

4Dresyn® TF-HV1 is a tough and foldable high viscosity 4D photopolymer designed to exhibit temperature-dependent mechanical behavior, transitioning from rigid below 0 °C to tough and flexible above 15 °C. It is intended to be combined with other 4Dresyn® materials to achieve customized 4D performance and programmed mechanical response.

Designed for use in SLA, DLP and LCD vat photopolymerization systems within controlled professional environments. Suitable for multi-material 4D printing applications requiring temperature-triggered flexibility, structural adaptation and controlled stiffness variation.

• 4D printing systems with low-temperature activation
• Flexible structures activated near room temperature
• Shape-morphing or adaptive components
• Hydrophobic functional parts with low water absorption
• Smart material systems combining rigidity and flexibility

• Tensile strength: <20 MPa (ISO 527)
• Flexural strength: <20 MPa (ISO 178)
• Young’s modulus: <100 MPa (ISO 527)
• Elongation: <70% (ISO 527)
• Notched Izod impact strength: >90 J/m (ISO 180)
• Shore hardness: D60 (ISO 868)
• Typical viscosity: <20,000 mPas at 23°C ± 2°C (ISO 3219)

• Density: 0.90–1.20 g/cm³, depending on formulation and, where applicable, selected version (ISO 1675)
• High viscosity resin designed for controlled and thermally assisted processing

• Thermal transition range: ~0–15 °C

• Rigid behavior below 0 °C
• Tough and foldable behavior above 15 °C
• Ultra tough and foldable at low thickness
• Rigid with superior shattering resistance at medium and high thickness
• Designed for combination with other 4Dresyn® materials
• Hydrophobic ULWA (Ultra Low Water Absorption) grade
• Biocompatible-grade, monomer-free formulation
• Durable performance under controlled conditions
• Very low shrinkage
• Organo-tin free formulation
• Compatible with most SLA, DLP and LCD 3D printers

• Suitable for applications requiring balance between rigidity and foldability
• Designed for blending with other 4Dresyn® systems to tune transition behavior
• Compatible with standard vat photopolymerization workflows

Material performance depends on printer type, exposure conditions, geometry, post-processing and multi-material formulation. Functional 4D behavior must be validated by the user under the intended thermal and mechanical conditions.

• Low-temperature responsive rigid-to-flexible transition
• Balanced rigidity and foldability across different thicknesses
• High impact and shattering resistance
• Hydrophobic ULWA grade with low water absorption
• Compatible with standard SLA, DLP and LCD printers
• Durable and organo-tin free formulation
• Designed for advanced multi-material 4D systems

Use these related 3Dresyns pages to navigate adjacent material and process routes within the same technical workflow.

• 4D resins for 4D printing
• Engineering & Functional 3D Resins

This technical datasheet should be used together with the relevant processing, calibration, safety and workflow documentation available in the 3Dresyns® Resources section.

Access the 3Dresyns® Technical Resources (IFU, calibration, CRT, post-processing and troubleshooting)