3Dresyn UHV-HDT1 Bio, Biocompatible high deflection temperature up to 290ºC resin for Hot Lithograghy HL and Viscous Lithography Manufacturing VLM

Product description

3Dresyn® UHV-HDT1 Bio is a clear, non-colored ultra high viscosity photopolymer developed for Hot Lithography (HL) and Viscous Lithography Manufacturing (VLM) applications requiring ultra-high rigidity, high thermal resistance and biocompatible-grade safe handling.

Application framework

Designed for use in Hot Lithography (HL) and Viscous Lithography Manufacturing (VLM) systems within controlled professional environments. Suitable for the fabrication of durable high-temperature molds and rigid technical parts requiring very high stiffness, thermal resistance and dimensional stability.

Typical applications

• Durable molds for injection temperatures up to 290 °C
• Ultra-rigid technical parts for HL and VLM workflows
• High-temperature tooling and mold inserts
• Dimensional-stable components requiring very high rigidity
• Advanced manufacturing workflows using high viscosity resins

Measured mechanical properties

• Heat deflection temperature (HDT): up to 290 °C @ 0.45 MPa (ISO 75)
• Tensile strength: >40 MPa (ISO 527)
• Flexural strength: >40 MPa (ISO 178)
• Flexural modulus: >5000 MPa (ISO 178)
• Shore hardness: D90 (ISO 868)
• Elongation: <1% (ISO 527)
• Typical viscosity: <60,000 mPa·s at 20 °C (Brookfield)
• Density: 1.0–1.2 g/cc at 25 °C
• Refractive index: 1.50–1.52

Functional performance characteristics

• Clear, non-colored liquid resin for HL and VLM
• Ultra hard and rigid (UHR)
• Biocompatible, ultra-safe formulation without toxic pictograms
• High temperature resistance suitable for demanding mold applications
• Durable behavior under controlled processing conditions
• Very high resolution
• Very low shrinkage
• Organo-tin free formulation
• Synthetic resin source

Processing and handling performance

• High viscous non-flowing resin at room temperature
• Compatible with Hot Lithography and Viscous Lithography Manufacturing systems
• Significant rigidity refinement can be achieved with 3Dresyn SA1 HV Bio and 3Dresyn HA1 HV MF Bio
• Detailed rigidity refinement can be achieved with 3Dresyn SA2 LV Bio and 3Dresyn HA2 LV Bio

Processing note

Note: high Heat Deflection Temperature HDT 3D resins despite being rigid tend to be fragile and have a short lifetime, degrading thermally at high temperature. If durable materials with high HDT are needed it is recommended the use of machined polyimide, or injecting PolyAmide Imide PAI or other high HDT conventional polymers in metal or 3D printed molds.

Testing & processing disclaimer

Material performance depends on printer type, thermal control, exposure conditions, geometry and full workflow implementation. Mechanical and thermal performance must be validated by the user for each specific application.

Why choose 3Dresyn® UHV-HDT1 Bio

• Ultra-high rigidity and hardness for demanding applications
• High thermal resistance up to 290 °C
• Suitable for HL and VLM manufacturing workflows
• Biocompatible-grade safe handling without toxic pictograms
• Very high resolution and very low shrinkage
• Rigidity tunable with dedicated adjusters
• Organo-tin free formulation

Regulatory & legal notice

This material is supplied as a professional manufacturing material and is not marketed as a finished product. Final performance, durability and process validation remain the responsibility of the user depending on printer, mold design, thermal exposure and workflow conditions.

Document reference: TDS-UHV-HDT1-BIO-EN | Version: 1.0 | Last updated: March 2026