ResinsPhrozen EU
Phrozen Engineering Tough ONYX Impact Plus Resin from Phrozen EU is a high-performance resin designed for demanding applications requiring a blend of high stiffness and toughness. Unlike standard resins, ONYX Impact Plus offers enhanced impact resistance and durability, significantly reducing breaks and cracks in functional prototypes. Despite its robustness, the resin retains its ability to reproduce ultra-fine details with high resolution, making it suitable for intricate models. This resin is compatible with most 4K and 8K MSLA printers utilizing 385 to 405 nm wavelengths. Curing times are optimized for fast printing speeds without compromising quality. Preferred applications include engineering parts, functional prototypes, dentistry, and robust miniatures and jewelry that require durability. Safety is paramount: always wear nitrile gloves and safety glasses during handling and work in a well-ventilated area. Post-processing involves washing with isopropyl alcohol and subsequent UV curing (405 nm) to achieve maximum mechanical properties.
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Resin TypeDetermines the primary use case and mechanical properties of the cured resin
Resins
Wavelength
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405 nm
ViscosityLower = easier to pour and peel. Higher = stronger but harder to work with
250 mPa·s
Cure TimeTime per layer under UV light. Lower = faster prints but may reduce detail
3s
Layer ThicknessThinner layers = more detail but longer print times
25 - 100 µm
Hardness (Shore)Higher number = harder/stiffer part. A-scale for flexible, D-scale for rigid
Shore 83D
DensityWeight per volume — affects the final part weight
1.12 g/cm³