Our Somos® resin was in the first stereolithography printer sold. 30 years later, Somos® is still setting the standard.

3D printing materials for stereolithography

Stereolithography is one of the most widely used additive manufacturing technologies. Stereolithography uses light to cure liquid resin into a solid object, one layer at a time. This offers dimensional freedom and complexity. Stereolithography can be used for a wide variety of applications including functional prototyping and rapid tooling. The technology excels at creating applications with fine features and high detail, as well as a smooth, injection mold-like surface finish. Stereolithography printers can be used to print many small intricate parts, or detailed large parts.

Three reasons to work with Covestro

More than 30 years’ experience in stereolithography resins

Experienced material scientists

Large ecosystem of partners

Product range

Somos® 9120

Form, fit and function with parts that are semi-flexible

Somos® BioClear

Clearing the way for progress

Somos® DMX SL-100

For hollow composite tooling. Creating structural impact

Somos® Element

For superior investment casting 

Somos® EvoLVe 128

Best balance of performance, speed and post-processing

Somos® GP Plus 14122

A low-viscosity resin with an opaque white appearance

Somos® Momentum

For a compelling solution that combines rich feature detail and dimensional stability

Somos® NeXt

Best balance of performance speed and post-processing

Somos® PerFORM

For applications that require strong, stiff, high temperature resistant composite parts

Somos® PerFORM Reflect

For speed and saving more than 30% post treatment

Somos® ProtoGen 18420

For tailoring parts to even better fit your application needs

Somos® ProtoTherm 12120

For applications in automotive and aerospace

Somos® Taurus

For superior strength and durability

Somos® WaterClear Ultra 10122

For colorless, functional and accurate parts that simulate an acrylic appearance

Somos® WaterShed Black

For building rigid, tough parts, while eliminating the need for painting

Somos® WaterShed XC 11122

The clear solution for designers looking for ABS- and PBT-like properties

View our webinar on demand

Join RPS and Covestro to find out how customers choosing the open resin Neo stereolithography 3D printer and Covestro resins are making an impact within the industry. Verified to run Somos® resins, the Neo stereolithography 3D printer is perfectly matched to print parts with outstanding smooth side wall quality, crisp accuracy and detail.

  • Find out how customers are successfully using the Neo 3D printer and Covestro resins to print prototypes and rapid tooling
  • Learn why using Neo 3D printers and Somos® resins can result in cost and time savings
  • Find out why RPS and Covestro resin is easy to run, and when matched, optimizes part quality for your application

Not sure which technology best fits your application? Explore our portfolio.

All Covestro materials at a glance

Don’t let investment costs stand in your way

TriCollective, an all-inclusive leasing program, allows you to lease a printer, material and other services to support your application needs. 

How can we help?

Get in touch with our experts to discuss how Covestro can help you tap into the full potential of additive manufacturing.