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The polypropylene-like SLA — flexible, fatigue-tough and chemically resistant.
Somos 9120 is a translucent, polypropylene-like SLA resin with superior chemical, water and fatigue resistance and strong memory retention — the go-to for snap-fit and living-hinge prototypes and parts that see moisture or solvents. It trades ultimate stiffness for durability.
Somos 9120 is used for durable, snap-fit functional prototypes and aerospace-style parts, including components that face moisture or chemicals where a resilient, fatigue-resistant resin is needed.
Smooth translucent surface off the printer; flexes without cracking and holds fine detail.
Available translucent natural, per manufacturer.
Lead times are indicative and start from order confirmation. Actual turnaround varies model by model, depending on part geometry, print time, quantity and shipping location. Express service incurs an additional charge. Express availability is subject to current machine capacity — please confirm when ordering.
Contact us| Price | $77.92 |
| Tensile strength | 30 MPa |
| Elongation at break | 20 % |
| Heat deflection (0.45 MPa) | 48 °C |
| Hardness | ~80 Shore D |
| Density | 1.13 g/cm³ |
| Water absorption (24 h) | 0.2 % |
| Layer / tolerance | ±0.10–0.20 mm or ±0.2% |
Parts printed in Somos 9120 Chemical-Resistant Resin in SLA can be finished a number of ways at KAD3D, from a clean functional surface to a fully painted, display-ready result. The treatments below are the ones we most often apply to this material.
Most popular finish: Sand and clear-coat to slow UV yellowing; paint where a colour is needed.
To make material costs easy to compare, KAD3D prints the same standard model — the #3DBenchy — in every material. The price shown is what that identical benchmark part costs in Somos 9120 Chemical-Resistant Resin, so you can weigh materials against each other on a genuine like-for-like basis before uploading your own file.
Benchmark price is a guide for comparison only; your part is quoted on its own size, geometry and finishing. Upload your model for an exact price.
These prices were taken on 1 July 2026 and are still in place.
Snap-fit and living-hinge prototypes, and moisture- or solvent-exposed parts.
Often chosen by Perth and Brisbane teams for snap-fit and living-hinge prototypes and moisture-exposed parts, where a polypropylene-like, chemically resistant resin suits the duty.
Behaves like injection-moulded polypropylene.
Printed in-house by KAD3D. Upload your part for an instant quote.
Get instant quote Made in Melbourne · delivered Australia-wide.Material data on these pages was compiled with the assistance of online research tools, in good faith, and may contain inaccuracies. Values are indicative only and intended to give a closer idea of each material's behaviour. For accurate, batch-specific TDS or SDS documentation, please contact KAD3D directly. KAD3D accepts no liability for any reliance on this information.