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Somos · Stereolithography materials
Somos SLA resins
The widest range of application-driven materials for open stereolithography machines. Tough, clear, heat-resistant and castable grades, supplied by Europac 3D. Advice comes from people who print with them every day.
- 13
- Somos grades we supply
- 5
- families, from tough to castable
- Open SLA
- supplied for UnionTech 3D printers
- To order
- supplied fresh for your job
Every Somos grade, by the job it does.
Figures are from each material’s datasheet (UV post-cure). Open a grade for the full properties table and datasheet.
Prototypes and end-use parts
Thermoplastic-like grades for functional prototypes and end-use parts, from charcoal-grey Taurus, heat tolerant to around 90°C, to true-black WaterShed Black.
SomosTaurusHDT62 °C at 0.46 MPaTensile46.9 MPaFlex modulus2,054 MPaTough end-use parts that need to behave like a thermoplastic.Details 
SomosNeXtHDT56 °C at 0.46 MPaTensile42 MPaFlex modulus2,470 MPaParts that need the look, feel and performance of a thermoplastic.Details 
Somos9120HDT60 °C at 0.46 MPaTensile31 MPaFlex modulus1,380 MPaFunctional parts that need fatigue performance and memory retention.Details 
SomosEvoLVe 128HDT52 °C at 0.46 MPaTensile56.8 MPaFlex modulus2,654 MPaDurable, highly detailed parts that are straightforward to finish.Details 
SomosWaterShed WhiteHDT59 °C at 0.46 MPaTensile54 MPaFlex modulus2,137 MPaAccurate, detailed white parts across a broad range of work.Details 
SomosWaterShed BlackHDT52 °C at 0.46 MPaTensile35 MPaFlex modulus1,750 MPaTrue-black parts that need little finishing, resisting moisture and chemicals.Details See-through parts
WaterShed XC is near-clear and ABS-like. It polishes close to transparent for flow rigs, lenses and see-through parts.
SomosWaterShed XCHDT50 °C at 0.46 MPaTensile50.4 MPaFlex modulus2,205 MPaParts you need to see inside — flow rigs, lenses, ductwork.Details Wind tunnels and tooling
Ceramic-filled composites, very stiff and heat resistant. PerFORM Reflect is made for wind-tunnel testing, designed to reduce or eliminate PIV coating work.
SomosPerFORMHDT132 °C at 0.46 MPaTensile68 MPaFlex modulus10,000 MPaTooling, wind tunnel models and anything that gets hot.Details 
SomosPerFORM ReflectHDT94 °C at 0.46 MPaTensile63.3 MPaFlex modulus8,273 MPaWind-tunnel models, with less or no PIV coating work.Details Investment casting
Low-ash pattern resins that burn out clean, for foundry patterns without cutting a tool. WaterShed AF is antimony-free.
SomosElementHDT58 °C at 0.46 MPaTensile53 MPaFlex modulus3,230 MPaInvestment casting patterns that need a low-ash burnout.Details 
SomosWaterShed AFHDT50 °C at 0.46 MPaTensile46 MPaFlex modulus2,030 MPaAntimony-free investment casting patterns with low ash after burnout.Details Footwear tooling and hollow composites
Momentum for footwear tooling with fine feature detail, plus DMX SL-100 for complex hollow composite parts made with a dry-removal process.
SomosMomentumFootwear tooling, carrying fine sole detail through to the aluminium mould.Details 
SomosDMX SL-100HDT44 °C at 0.46 MPaTensile45 MPaFlex modulus2,290 MPaComplex hollow composite parts, with a dry-removal process.Details Older Somos grades with their own pages:
Start from what the part has to do.
Tell us the part and the 3D printer. We will recommend the grade and confirm the machine settings before you order.
Tough end-use parts
Taurus is our workhorse: thermoplastic-like, heat tolerant to around 90°C.
Clear parts
WaterShed XC polishes close to transparent for flow rigs, lenses and see-through parts.
Heat, stiffness and casting
PerFORM for wind tunnels and tooling inserts. Element and WaterShed AF burn out clean for foundry patterns.
3D printers that run Somos.
MaterialsUnionTech SLA resinsThe Somos grades and other resins we supply for UnionTech SLA 3D printers and what each one is for.
UnionTechUnionTech SLA 3D printersEvery UnionTech SLA model we supply, from the PILOT 250 to the RSPro2100.
Our print serviceHave the parts printed by usOur own SLA print service runs on UnionTech machines. Not ready to buy? We can print the parts while you decide.Which Somos grade for your part?
Tell us the part and the 3D printer. We will recommend the grade.