


3Dresyn RIC-UHTD90 Bio, Biocompatible ultra hard & tough resin with Shore D90 for Resin Injection and Casting
Product description
3Dresyn RIC-UHTD90 Bio is an ultra hard and tough resin for injection and casting.
This material is designed for durable casting and mold-making applications requiring high flexural strength, high tensile strength, very high hardness, toughness and very high resolution. It is also described as isotropic, clear and non yellowing for ophthalmic lenses.
Application framework
Designed for resin injection and casting workflows, including gravity casting and injection in molds, for fabrication of ultra hard and tough parts and durable molds for injection temperatures up to 100ºC.
Typical applications
- Durable molds for injection temperatures up to 100ºC
- Resin injection and casting workflows
- Gravity casting in molds
- Injection casting in molds
- Isotropic clear and non yellowing parts for ophthalmic lenses
Measured mechanical properties
- Tensile strength: >50 MPa (ISO 527-1 / ISO 527-2)
- Flexural strength: 90-110 MPa (ISO 178)
- Young’s modulus: 2500-3000 MPa (ISO 527)
- Elongation at break: <3% (ISO 527)
- Shore hardness: D90 (ISO 868)
Measured physical properties
- Heat deflection temperature: >100ºC (ISO 75)
- Viscosity: <15.000 mPas at 23°C ± 2°C (ISO 3219)
- Density: 1.0-1.2 g/cc at 25ºC (ISO 1183)
- Refractive index: 1.47-1.49
- Shrinkage: very low
Functional performance characteristics
- Ultra hard and tough resin for injection and casting
- Very high hardness and toughness
- Medium viscous resin with medium flow at room temperature
- Isotropic clear and non yellowing for ophthalmic lenses
- Durable
- High impact resistance
- Very high resolution
Processing and handling performance
- Castable at room temperature by gravity or by injection in molds
- Hardness and rigidity can be custom increased with our Hardness Adjuster 3Dresyn HA1 HV MF Bio at your optimum dosage of 1-15% by weight
- Significant rigidity refinement can be done with our Hardness Adjusters 3Dresyn SA1 HV Bio and 3Dresyn HA1 HV MF Bio
- Detailed rigidity refinement without sacrificing foldability can be done with our Hardness Adjusters 3Dresyn SA2 LV Bio and 3Dresyn HA2 LV Bio
- Curable with light with Fine Tuners FT additives photo accelerants
- Curable by heat with Fine Tuner TA1, our general purpose fast thermal accelerant for thermally curing our 3Dresyns
Chemical and safety characteristics
- Synthetic resin source
- Organo-tin free
Testing & processing disclaimer
Final casting behavior, mold durability, optical clarity, isotropy and mechanical performance must be validated by the user according to the intended application, curing route, mold design and processing conditions.
Disclaimer
This material is supplied as a professional manufacturing material and is not marketed as a finished medical device. Final part performance and suitability must be validated by the user according to the intended application.
This technical datasheet should be used together with the relevant processing, calibration, safety and workflow documentation available in the 3Dresyns® Resources section.
Document reference: TDS-3DRESYN-RIC-UHTD90-BIO-EN | Version: 1.0 | Last updated: March 2026
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