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.

x

Somos WaterShed AF

Stereolithography Resin

TriMech can 3D print accurate, complex investment casting patterns with excellent surface finish.

Somos® WaterShed AF is a multi-purpose stereolithography resin that meets the requirements for investment casting patterns as it has been designed without antimony to address sensitivities in the casting of certain specialty alloys.

As no antimony is used, patterns created with Somos® WaterShed AF leave much lower amounts of ash residue after burnout, reducing clean-up and speeding up mold production.

SOMOS Watershed AF Part

Somos WaterShed AF 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 Fan

Main Uses

Investment casting patterns, the resin is designed without antimony to address sensitivities in the casting of certain specialty alloys.

Material Features and Applications

No detectable levels of antimony per ICP-AES test methodology

Trace amounts of ash that are easily removed

Low viscosity

Dimensionally stable

Suitable for high-end alloy castings

Rapid draining

Produces accurate, repeatable parts regardless of size

Somos Material Specification

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

Material Name	Description	Tensile 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 11122	Versatile, good all-round polymer, very easy to use	50.4 MPa (at break)	15.5%	2,770 MPa	50 °C	25 J/m	Clear
Somos® WaterClear Ultra 10122	Versatile, easy to use, exceptional clarity	56 MPa (at break)	7.5%	2,880 MPa	47 °C	25 J/m	Clear
Somos® WaterShed Black	Versatile, good all-round polymer, very easy to use	50.4 MPa (at break)	15.5%	2,770 MPa	50 °C	25 J/m	Black
Somos® PerFORM	Very high heat and stiffness, ceramic	68 MPa	1.1%	10,500 MPa	269 °C	17 J/m	White
Somos® PerFORM Reflect	Very high heat and stiffness, ceramic, developed for PIV	63.3 MPa	0.8%	10,135 MPa	276 °C	17 J/m	Orange
Somos® Taurus	High heat and toughness, thermoplastic like performance	46.9 MPa (at yield)	24%	2,310 MPa	62-91 °C	47.5 J/m	Charcoal
Somos® EvoLVe 128	Very tough and durable with great surface finish	56.8 MPa (at yield)	11%	2,694 MPa	52 °C	39 J/m	White
Somos® WaterShed AF	Print accurate, complex investment casting patterns with excellent surface finish	46 MPa	10%	2,460 MPa	50 °C	34 J/m	Clear
Somos® 9120	Versatile, good all round polymer, very easy to use	31 MPa	20%	1,350 MPa	n/a	51 J/m	Clear
Somos® BioClear	For non-implantable limited body contact (<24hr) medical and dental applications	50.4 MPa (at break)	15.5%	2,770 MPa	50 °C	25 J/m	Clear
Somos® 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 MPa	44 °C	0.61–0.71 J/m	Off 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.

About our SLA Service

Industries we work with

TriMech Advanced Manufacturing is used in a wide variety of industries

Architecture 3D printing

Architectural Design & 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

Medical 3D printing

Dental, Medical & Life Sciences

Anatomical models
Medical devices
Orthopedics
Prosthetics
Surgical planning models

Industrial design 3D printing

Industrial Products, Mold Tool & Die

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

More Materials

P3 DLP Silicone 25A Filter no Gloves

Stratasys P3 Silicone 25A

Stratasys P3 Silicone 25A is a soft, flexible, and durable elastomer that features unique properties versus traditional polymers thanks to its distinct silicone-oxygen backbone.

Loctite 3D IND3380 ESD - p3 dlp esd connector core

Loctite 3D IND3380 ESD

LOCTITE 3D IND3380 ESD is a high-temperature, electrostatic dissipative resin ideal for jigs, fixtures, and electronic manufacturing. Offers 190°C HDT, high stiffness, and chemical resistance.

Hand Xray RadioMatrix PolyJet Medical Material

RadioMatrix

RadioMatrix is a 3D printing material designed to replicate radiopacity under X-ray and CT imaging.

Categorized as 3D Printing SLA