Carbon DLS

Carbon DLS (digital light synthesis) is an industrial 3D printing process that creates functional, end-use parts with mechanically isotropic properties and smooth surface finishes. You can choose from both rigid and flexible polyurethane materials to meet your application needs for high impact-resistance components.

How Does Carbon DLS Work?

Carbon DLS uses CLIP (continuous liquid interface production) technology to produce parts through a photochemical process that balances light and oxygen. It works by projecting light through an oxygen-permeable window into a reservoir of UV-curable resin. As a sequence of UV images are projected, the part solidifies, and the build platform rises.

At the core of the CLIP process is a thin, liquid interface of uncured resin between the window and the printing part. Light passes through that area, curing the resin above it to form a solid part. Resin flows beneath the curing part as the print progresses, maintaining the continuous liquid interface that powers CLIP. Following the build, the 3D-printed part is baked in a forced-circulation oven where heat sets off a secondary chemical reaction that causes the materials to adapt and strengthen.

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  • Shipped in as fast as 3 days
Common Applications
  • complex designs that are challenging to mold
  • need for isotropic mechanical properties and smooth surface finishes
  • production parts in materials comparable to ABS and polycarbonate
  • durable components for end-use applications

Carbon DLS Design Guidelines and Capabilities

Our basic guidelines for Carbon DLS (digital light synthesis) include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time.

carbon dls part

Carbon DLS Material Options

Carbon RPU 70

RPU 70 Rigid Polyurethane is manufactured through Carbon’s DLS (digital light synthesis) process. It is a tough all-purpose engineering grade material that comes in black and can be categorized as an ABS-like materials. Ideal part sizes for Carbon materials are 5 in. x 5 in. x 5 in. or less.

Primary Benefits

  • Tough material
  • UL 94 HB flame resistance classification

Carbon FPU 50

Carbon FPU 50 exhibits the highest elongation of any of the 3D printing thermoset resins at 200% making it the most flexible option. Available in black, it falls under the PP-like category of 3D printing resins.

Primary Benefits

  • Highest elongation properties
  • Fatigue resistance

Compare Carbon DLS Material Properties

Material Color Tensile Strength Tensile Modulus Elongation
Carbon RPU 70 Black 6 ksi 245 ksi 100%
Carbon FPU 50 Black

4 ksi

100 ksi

Material Color Tensile Strength Tensile Modulus Elongation
Carbon RPU 70 Black 41.4 MPa 1,690 MPa 100%
Carbon FPU 50 Black

27.6 MPa

690 MPa


These figures are approximate and dependent on a number of factors, including but not limited to, machine and process parameters. The information provided is therefore not binding and not deemed to be certified. When performance is critical, also consider independent lab testing of additive materials or final parts.


a metal 3D printing technician removes support structures from a DMLS part

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