3Dresyn PP-like, Polypropylene like

Tough semi-flexible biocompatible 3D printing resin with polypropylene (PP-like) mechanical behaviour, combining low stiffness, high elongation and excellent impact resistance.

Product description

3Dresyn® PP-like is a high-performance photopolymer engineered to replicate the mechanical behaviour of polypropylene, offering a balance between flexibility, toughness and low density mechanical response. The material exhibits semi-flexible behaviour with good elongation and impact resistance, making it suitable for functional components requiring durability and repeated deformation. It provides clear to light transparent orange finishes depending on formulation and post-processing conditions, while maintaining ultra low water absorption. It is available in HV (higher mechanical performance) and LV (lower viscosity) versions for compatibility with SLA, DLP and LCD printing systems.

Intended use

Intended for professional use in vat photopolymerization (SLA, DLP and LCD) additive manufacturing.
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 functional parts and living hinges
• Containers, housings and fluid-contact components
• Impact-resistant lightweight components
• Snap-fit parts and repeated-use mechanical elements
• Biomedical and food-contact oriented applications (subject to validation)

Material properties & test methods

Mechanical properties

• Flexural strength (break): <30 MPa (typical) (ISO 178)
• Tensile strength: <30 MPa (typical) (ISO 527-1 / ISO 527-2)
• Young’s modulus: <1.0 GPa (typical) (ISO 527-1 / ISO 527-2)
• Elongation at break: <80% (typical) (ISO 527-1 / ISO 527-2)
• Impact resistance (Notched Izod): <85 J/m (typical) (ISO 180)
• Shore hardness: D70 (ISO 868)

Thermal properties

• Glass transition temperature (Tg): <25 °C (typical)

Physical properties

• Color: clear to light transparent orange depending on formulation and post-processing
• Density: ~1.0–1.1 g/cm³ (typical)
• Water absorption: ultra low (ULWA, hydrophobic behaviour)
• Bio-based content: >20% from renewable sources
• Shrinkage: very low (typical)

Biocompatibility & regulatory framework

• Biocompatible formulation platform
• Non-cytotoxic under validated conditions
• Biocompatibility must be evaluated on the final printed and post-processed device according to ISO 10993
• Manufacturing aligned with ISO 13485 quality management systems
• Organo-tin free formulation

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 test specimen preparation. Reported values are indicative and provided for reference only.

Printing & processing guidelines

• Printing technologies: SLA, DLP and LCD
• Wavelength range: 385–405 nm
• Compatible with open-parameter vat photopolymerization systems
• LV (~<10,000 cP @ 25 °C): optimized for unheated printers or ambient temperatures below ~25 °C
• HV (~higher viscosity): optimized for heated systems and improved mechanical performance
• Follow 3Dresyns IFU for exposure, washing and post-curing to achieve target properties

Product units

• Available units: 500 g, 1,000 g

Why choose 3Dresyn® PP-like

• PP-like balance of flexibility, toughness and durability
• Good elongation with resistance to repeated deformation
• High impact resistance for lightweight functional parts
• Ultra low water absorption (ULWA) and hydrophobic behaviour
• Bio-based content from renewable sources
• Very low shrinkage and good dimensional stability
• Organo-tin free formulation
• Available in LV and HV versions for broader processing flexibility
• Open-system compatibility (385–405 nm) across SLA/DLP/LCD workflows

Document reference: TDS-PP-LIKE-EN | Version: 1.0 | Last updated: March 2026