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Somos EvoLVe 128

Stereolithography Resin

Very tough and durable with great surface finish.

Somos® EvoLVe 128 is a durable stereolithography material that produces accurate, highly detailed parts and is designed for easy finishing. The material’s look and feel is almost indistinguishable from finished traditional thermoplastics, making it perfect for building parts and prototypes for functional testing applications and resulting in time, money and material savings during product development. Ideal applications include tough, functional prototypes, snap-fits and jigs & fixtures.

Somos EvoLVe 128

Somos EvoLVe 128 Material Profile

Learn more about the Stratasys Stereolithography 3D printing technology used to make parts

Stratasys Neo Stereolithography 3D Printer

With the Neo Stereolithography 3D printer we can create smooth-surfaced prototypes, master patterns, large concept models and investment casting patterns more quickly and more precisely than ever before.

SLA resin material

Main Uses

Somos EvoLVe 128 is a tough material ideal for functional prototypes, snap-fits and jigs & fixtures.

Material Features and Applications

Easy to clean & finish

High strength & durability

Accurate & dimensionally stable

High detail

Large parts produced without the need for cutting and gluing

Somos Material Specification

Properties and testing results for the Somos 3D printing resin materials

Material NameDescriptionTensile Strength (ASTM D638M)Elongation at Break (ASTM D638M)Tensile Modulus (ASTM D638M)HDT @ 0.46 MPa (ASTM D648)Notched Izod Impact (ASTM D256A)Color
Somos® WaterShed XC 11122Versatile, good all-round polymer, very easy to use50.4 MPa
(at break)
15.5%2,770 MPa50 °C25 J/mClear
Somos® WaterClear Ultra
Versatile, easy to use,
exceptional clarity
56 MPa
(at break)
7.5%2,880 MPa47 °C25 J/mClear
WaterShed Black
Versatile, good all-round polymer, very easy to use50.4 MPa
(at break)
15.5%2,770 MPa50 °C25 J/mBlack
Very high heat and
stiffness, ceramic
68 MPa1.1%10,500 MPa269 °C17 J/mWhite


Very high heat and
stiffness, ceramic, developed for PIV
63.3 MPa0.8%10,135 MPa276 °C17 J/mOrange
Somos® TaurusHigh heat and toughness, thermoplastic like performance46.9 MPa
(at yield)
24%2,310 MPa62-91 °C47.5 J/mCharcoal
EvoLVe 128
Very tough and durable with great surface finish56.8 MPa
(at yield)
11%2,694 MPa52 °C39 J/mWhite
Somos® WaterShed AFPrint accurate, complex investment casting patterns with excellent surface finish46 MPa10%2,460 MPa50 °C34 J/mClear
Versatile, good all round polymer, very easy to use31 MPa20%1,350 MPan/a51 J/mClear
Somos® BioClearFor non-implantable limited body contact (<24hr) medical and dental applications50.4 MPa
(at break)
15.5%2,770 MPa50 °C25 J/mClear

DMX SL-100

Durable and tough for
production of complex, hollow composite parts
29.7–32.1 MPa (at break)12–28%2,260–2,560 MPa44 °C0.61–0.71 J/mOff white

Stereolithography (SLA) Technology

Advantages of parts built with a Stratasys Stereolithography Machine

What is Stereolithography?

Stereolithography (SL/SLA) was the world’s first 3D printing technology, and it remains a great option for highly detailed prototypes that require tight tolerances and smooth surfaces. It uses a UV laser to cure and solidify fine layers of photopolymer in an open vat.


Why choose SLA?

SLA is great for prototyping parts that will ultimately be painted or coated because the models can be finished using the same materials and processes as the end product. Transparent, heat resistant and moisture resistant materials are also attractive for medical, automotive and other prototypes that call for flow visualization, light transmittance or thermostability.

SLA benefits

Product designers opt for SL models when a quick build time is crucial, and they can invest time and resources into additional finishing processes. SL can also produce master patterns for urethane casting, and investment casting patterns that are used to produce metal parts for aerospace, automotive, power generation and medical applications.


Industries we work with

TriMech services are used in a wide variety of industries

Architecture 3D Printing

Architecture & Construction

  • Model making
  • Urban planning
  • Concepts
Consumer Product 3D printing

High Tech & Consumer Products

  • Aesthetic and function testing
  • Concepts and prototypes
  • Sales and marketing models
Industrial design 3D printing

Industrial Design & Manufacturing

  • Aerospace
  • Automotive
  • Defense
  • Industrial equipment
  • Marine and offshore
  • Oil and gas
Medical 3D printing

Dental, Medical & Life Sciences

  • Anatomical models
  • Medical devices
  • Orthopedics
  • Prosthetics
  • Surgical planning models
Mold tool die 3D printing

Industrial Products, Mold Tool & Die

  • Jigs, fixtures, and assembly tooling
  • Injection molding
  • Silicone molding
  • Sand and investment casting
  • Thermoforming

Interested in Somos EvoLVe 128?

Call 888.392.0957 or Upload Your Part