4Dresyn F-HV1, Flexible High Viscosity 4D resin

Product description

4Dresyn® F-HV1 is a high viscosity flexible 4D photopolymer designed to exhibit temperature-dependent mechanical behavior, transitioning from rigid below 15 °C to flexible above 25 °C. It is intended to be combined with other 4Dresyn® materials to achieve customized 4D performance and programmed mechanical response.

Application framework

Designed for use in SLA, DLP and LCD vat photopolymerization systems within controlled professional environments. Suitable for multi-material 4D printing applications requiring flexible behavior above ambient temperature, shape adaptation and controlled stiffness variation.

Typical applications

• 4D printing systems with near-room temperature activation
• Flexible structures activated above ambient conditions
• Shape-morphing or adaptive components
• Soft structural elements with controlled rigidity
• Smart material prototypes with programmed response

Measured mechanical properties

• Thermal transition range: ~15–25 °C
• Flexural strength: <20 MPa (ISO 178)
• Tensile strength: <10 MPa (ISO 527)
• Young’s modulus: <30 MPa (ISO 527)
• Shore hardness: D40 (ISO 868)
• Elongation: >80% (ISO 527)
• Typical viscosity: 20,000–25,000 mPa·s at 20 °C

Functional performance characteristics

• Rigid behavior below 15 °C
• Flexible behavior above 25 °C
• 100% foldability without breaking above transition temperature
• Excellent balance between flexural strength and low modulus
• Rubber-like behavior comparable to soft elastomers
• Biocompatible-grade, monomer-free formulation
• Ultra-safe formulation without toxic pictograms
• Non-yellowing appearance
• Durable performance under controlled conditions
• Very high resolution
• Very low shrinkage
• Organo-tin free formulation
• Bio-based and synthetic resin source

Processing and handling performance

• High viscosity resin suitable for controlled and thermally assisted processing
• Designed for blending with more rigid 4Dresyn® systems to tune mechanical response and enable printability
• Compatible with SLA, DLP and LCD workflows when properly formulated in multi-material systems
• Suitable for applications requiring balance between flexibility and structural integrity

Testing & processing disclaimer

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

Why choose 4Dresyn® F-HV1

• Temperature-responsive rigid-to-flexible transition near room temperature
• Balanced mechanical performance with low modulus and adequate strength
• High elongation and foldability without fracture
• Non-yellowing appearance and very low shrinkage
• Designed for advanced multi-material 4D systems
• Biocompatible-grade safe handling without toxic pictograms
• Very high resolution and durable performance
• Organo-tin free formulation

Regulatory & legal notice

This material is supplied as a professional manufacturing material and is not marketed as a finished product. Safe use requires appropriate personal protective equipment. Final performance, actuation behavior and application suitability remain the responsibility of the user.

Document reference: TDS-4DRESYN-F-HV1-EN | Version: 1.0 | Last updated: March 2026