3Dresyn Biotough D70 MF Monomer-Free Tough Biocompatible Resin

Product description

3Dresyn® Biotough D70 MF is a biocompatible, monomer-free photopolymer resin engineered to provide increased flexibility compared to higher Shore D grades while maintaining controlled mechanical resistance and dimensional stability.

The formulation is optimized for professional additive manufacturing workflows requiring balanced toughness, flexibility and predictable material behavior.

Application framework

Intended for professional use in vat photopolymerization (SLA, DLP and LCD) additive manufacturing systems operating in the 385–405 nm range.

Final suitability of printed parts must be validated by the user according to the specific application, processing conditions and applicable regulatory requirements.

Typical applications

• Flexible yet durable structural components
• Impact-resistant technical parts
• Wearable functional prototypes
• Dynamic mechanical development models

Measured mechanical properties

• Tensile strength: 25–45 MPa (ISO 527-1 / ISO 527-2)
• Flexural strength: 40–70 MPa (ISO 178)
• Young’s modulus: 1200–1800 MPa (ISO 527-1 / ISO 527-2)
• Elongation at break: 15–30 % (ISO 527-1 / ISO 527-2)
• Shore hardness: D70 (ISO 868)

Measured thermal properties

• Heat deflection temperature (HDT): <50 °C @ 0.45 MPa (ISO 75)

Measured physical properties

• Density: 1.0–1.2 g/cm³ (ISO 1183)
• Water absorption: <0.1 % (24 h @ 23 °C) (ISO 62)
• Shrinkage: very low

Functional performance characteristics

• Flexible tough system with increased elongation
• Balanced mechanical resistance and flexibility
• Good dimensional stability and durability
• Designed for flexible functional and regulated applications
• Monomer-free biocompatible formulation

Processing and handling performance

• Printing technologies: SLA, DLP and LCD
• Wavelength range: 385–405 nm
• Proper washing and post-curing are required to achieve final mechanical properties and biocompatibility outcomes
• Material behavior depends on printer, parameters, geometry, washing, post-curing and workflow control
• Available units: 500 g, 1,000 g

Chemical and safety characteristics

• Monomer-free system architecture designed to minimize residual extractables after proper post-processing

Biocompatibility framework

• Biocompatibility evaluated according to ISO 10993 on post-cured and properly cleansed specimens
• Manufacturing aligned with ISO 13485 quality management systems

Testing & processing disclaimer

Material properties are measured on printed and post-processed specimens and may vary depending on the selected material version, printer type, printing parameters, build orientation, post-curing conditions and specimen preparation. Reported values are indicative and provided for reference only.

Disclaimer

This material is supplied as a professional manufacturing material and is not marketed as a finished medical device. The regulatory classification, conformity assessment and validation of any final device manufactured using this material remain the sole responsibility of the legal manufacturer.

Document reference: TDS-BIOTOUGH-D70-MF-EN | Version: 2.0 | Last updated: March 2026