3D ADD HRI1 Black, High Refractive Index Black additive

3D ADD HRI1 Black is a high refractive index liquid additive formulated for optical adjustment and black coloration of photopolymer systems. It incorporates a highly loaded micron-scale black material designed to provide refractive index enhancement, deep black appearance and stable dispersion in compatible 3D resins.

This additive is intended for refractive index modification, black coloration and optical tuning of photocurable resin systems for additive manufacturing and related applications.

Designed for use in compatible photopolymer formulations and 3Dresyns® systems within controlled professional and research environments. Suitable for refractive index modification, black coloration and optical tuning of photocurable resin systems for additive manufacturing and related applications.

• Black coloration of 3D printing resins
• Optical formulation development and tuning
• Nanocomposite/microcomposite resin preparation
• Advanced material customization in compatible photopolymer systems

• Density: 0.90–1.20 g/cm³, depending on formulation and, where applicable, selected version (ISO 1675)
• Particle size (D50): <50 µm (99% <25 µm) (ISO 13320)
• Viscosity: optimized within the processing range required for the intended printing process and application
• Active compound loading: 75–77%
• Black color in daylight

• Refractive index adjustment of photopolymer systems
• Refractive index of active compound: 2.3–2.5 at 589 nm

• High refractive index liquid additive
• Medium viscosity with good handling characteristics
• Excellent stability without significant sedimentation
• Highly loaded with high refractive index black material
• Black opaque daylight appearance when used at >0.2% dosage in 3Dresyns® systems
• Compatible with most commercial 3D resins

• Suitable for incorporation into compatible resin systems with controlled mixing
• Designed for stable dispersion with low sedimentation tendency
• Appropriate for optical and color tuning of photocurable formulations
• Recommended for validation under specific processing conditions

• Hydrophobic behavior
• VOC-free formulation

Final optical behavior, dispersion stability, coloration and printability depend on the host resin, additive dosage, mixing conditions and processing workflow. Performance must be validated by the user for each specific application.

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.

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

• 3D resins by refractive index
• Functional Additives

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)