Somos® DMX SL-100

Leading material for hollow composite tooling, creating structural impact

Breaking the mold in speed, efficiency and design freedom

Creating intricate, hollow composite parts has always been a challenge for the traditional manufacturing industry – but not for additive manufacturing. Somos® DMX-SL 100 is a durable and tough stereolithography material that enables production of complex, hollow composite parts in days thanks to a unique and cost-effective ‘dry removal’ process - and all with no compromise on quality and aesthetics.

The ‘dry removal’ process enables mandrels to be removed from complex, convoluted geometries after the autoclave without the need for submersion in caustic (which can affect the composite part). Somos® DMX-SL 100 produces very accurate parts with a superb surface finish and outstanding feature detail. Somos® DMX-SL 100 withstands the extreme temperatures of the autoclave process utilized in composites manufacturing, maintaining its flexural strength, elongation and tear resistance.

As a result, manufacturers have more design freedom to create high temperature, cost-effective tools in days rather than weeks or sometimes even months.


  • Automotive & transportation: ducts, pipes and conduits, high-end automotive intake pipes, fluid-holding tanks, electric vehicle (EV) battery cooling solutions
  • Consumer products: sports and leisure goods, luxury goods, interior design
  • Electronics: bespoke light-weight enclosures, complex wiring looms, robotic components
  • Healthcare: precision-molded internals for prosthetics

Product Features

  • Accuracy
  • Extreme durability
  • Greater design freedom
  • High feature detail and smooth finish
  • Faster part design

Composite Tooling with Somos® DMX SL-100

This material is a true breakthrough innovation, opening up the possibility of producing composite tooling using 3D printing technology. Discover how it can help revolutionize tooling production:

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.