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With over 35 years of experience, the TriMech Group offers a comprehensive range of design, engineering, staffing and manufacturing solutions backed by experience and expertise that is unrivalled in the industry. The TriMech Group's solutions are delivered by the divisions and brands shown here, use the links above to visit the group's websites and learn more.

Somos WaterShed Black

Stereolithography Resin

Versatile, good all-round polymer, very easy to use.

With similar properties and processing to Somos® WaterShed XC 11122, Somos WaterShed Black is a stereolithography resin that produces rigid, tough parts in a true black color, with no need for painting.

With its improved formulation, Somos® WaterShed Black has up to a 50% faster processing speed compared to other black SL materials, offering minimal finishing and more consistent processing over time. Somos WaterShed Black also offers superior moisture and chemical resistance.

Somos WaterShed black

Somos WaterShed Black 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.

Somos WaterShed Black example

Main Uses

Durable, stiff, tough parts such as automotive components, electronic housings, packaging, functional prototypes and end use parts.

Material Features and Applications

Ease-of-use and fast processing with minimal finishing, more consistent processing over time

Truer black color off the machine

Based on proven technology of Somos® WaterShed XC 11122

Smooth surface finish

Automotive components, electronic housings, packaging

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 WaterShed Black?

Call 888.392.0957 or Upload Your Part