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The polypropylene-like SLA — flexible, fatigue-tough and chemically resistant.
Chemical-resistant resin 3D printing at KAD3D — 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.
Typical applications include Snap-fit and living-hinge prototypes, and moisture- or solvent-exposed parts.
Produced with SLA, Chemical-resistant resin 3D printing typically offers a tensile strength around 30 MPa, elongation at break near 20%, heat deflection about 48 °C, a density of 1.13 g/cm³, a hardness of ~80 Shore D and water absorption around 0.2%. Full technical data is listed in the table below.
For dimensional work, Somos 9120 Chemical-Resistant Resin supports a typical layer height or tolerance of ±0.10–0.20 mm or ±0.2%.
This makes Somos 9120 Chemical-Resistant Resin a strong choice for parts that need chemical / moisture exposure, fine detail, impact-tough and water-resistant.
Finishing options for Somos 9120 Chemical-Resistant Resin include Sanding and Painting / Priming.
Standard turnaround for Somos 9120 Chemical-Resistant Resin is 10 business days, with an express option in 2–4 business days, from order confirmation and delivered Australia-wide.
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.
Smooth translucent surface off the printer; flexes without cracking and holds fine detail. The most popular finish is Sand and clear-coat to slow UV yellowing; paint where a colour is needed. Available translucent natural, per manufacturer. Maximum build size is up to 2700 × 900 × 800 mm.
SLA (stereolithography) cures liquid resin with a precise light source, giving smooth surfaces and fine detail that suit visual models and master patterns. You can read more about the SLA process on Wikipedia.
Build orientation matters in Somos 9120 Chemical-Resistant Resin: it influences surface finish, dimensional accuracy and where a part is strongest. Upload an STL, STEP or 3MF file with a note on how the part will be used, and our team will orient and prepare the build for the features that matter most — before anything is printed.
From a single prototype to a repeatable low-volume run, KAD3D handles Chemical-resistant resin 3D printing end to end in Melbourne — free instant quotes online, honest advice on material and finish, a check on every part before it ships, and delivery anywhere in Australia. 2–4 business days express is available on this material.
Indicative pricing for Somos 9120 Chemical-Resistant Resin starts around $77.92 AUD for small parts. Every job is quoted exactly on geometry and quantity — instant online quotes are free.
Standard turnaround for Somos 9120 Chemical-Resistant Resin is 10 business days from order confirmation, with a 2–4 business days express option, delivered Australia-wide.
Printed Somos 9120 Chemical-Resistant Resin offers a tensile strength around 30 MPa. The full technical profile, including the figures that matter for your part, is in the table on this page.
The maximum build size for Somos 9120 Chemical-Resistant Resin is 2700 × 900 × 800 mm. Larger parts can often be printed in sections and joined — ask when you quote.
Yes — Somos 9120 Chemical-Resistant Resin takes primer and paint well and sands easily. The most common finishing routes for this material are listed above, and our team can recommend the right one for your part.
Typical layer height or tolerance for Somos 9120 Chemical-Resistant Resin is ±0.10–0.20 mm or ±0.2%. If a feature needs to be tighter, flag it when you quote and we will confirm what is achievable.
Compare Somos 9120 Chemical-Resistant Resin with KS1208H High-Temperature Resin, KS158T Glass-like Transparent Resin, KS168C Castable Resin, KS198S Flexible Resin, KS408A Standard ABS-like Resin, or browse the full materials hub.
Ready to start? Upload your file for a free instant quote on Chemical-resistant resin 3D printing at KAD3D.
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.
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.