3Dresyn ENG3 Bio Engineering Bio-Based Resin (25% Bio, Several Colors)

3Dresyn ENG3 Bio is a cost-effective bio-based engineering photopolymer formulation designed for functional part fabrication using SLA, DLP and LCD 3D printing technologies. The material incorporates approximately 25% bio-based content derived from renewable sources while maintaining robust mechanical performance suitable for engineering applications.

This formulation is engineered to provide a balance of rigidity, toughness and durability, supporting the production of functional components requiring reliable mechanical behavior and dimensional stability.

Designed for use in vat photopolymerization systems (SLA, DLP and LCD) within professional and industrial environments for engineering, prototyping and functional part manufacturing.

• Functional engineering prototypes
• Mechanical parts and housings
• Jigs, fixtures and tooling components
• Durable concept validation parts

• Tensile strength: >40 MPa (ISO 527-1 / ISO 527-2)
• Flexural strength: >40 MPa (ISO 178)
• Young’s modulus: >1500 MPa (ISO 527)
• Elongation at break: <10% (ISO 527)
• Shore hardness: D85 (ISO 868)

• Density: 0.90–1.20 g/cm³, depending on formulation and, where applicable, selected version (ISO 1675)
• Printing shrinkage: no measurable dimensional shrinkage after calibration under validated processing conditions
• Resolution capability: very high (process-dependent)
• Bio-based content: ~25% from renewable sources
• Viscosity: optimized within the processing range required for the intended printing process and application
• Low viscosity enabling reliable flow and recoating
• Available colors: clear, black and grey

• Hard and tough material behavior
• High mechanical strength for functional applications
• Good durability under mechanical load
• Very low shrinkage supporting dimensional accuracy
• Excellent surface quality and resolution

• Printing technologies: SLA, DLP and LCD
• Ultrafast curing: <5 seconds per layer on LCD systems (process-dependent)
• Compatible with most commercial and professional systems when properly calibrated
• Supports extended resin tank lifetime

• BPA-free formulation
• Transition metal-free formulation
• Organo-tin free formulation
• Biocompatibility-related evaluation possible within validated workflows

Material properties are measured under controlled laboratory conditions and may vary depending on printer type, exposure conditions, layer thickness, build orientation and post-processing workflow.

This material is supplied as a professional manufacturing material for engineering and prototyping workflows. It is not marketed as a finished medical device. Final part performance and suitability must be validated by the user according to the intended application.

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

• Engineering & Functional 3D Resins
• Bio-Based 3D Printing 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)