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Stereolithography (SLA)


Smooth Surfaces and Exceptionally Fine Detail

Stereolithography (SLA) is an additive manufacturing technology developed by 3D Systems. The process cures liquid photopolymer resin with a laser to build parts layer upon layer, each typically measuring from 0.004”(0.100mm) to  0.006” (0.152mm).

SLA offers advantages in terms of speed, and can deliver functional prototypes and concept models in as little as 2-3 days.


SLA Technology allows rapid production of accurate scaled models in a short amount of time. It provides parts that are lightweight and durable, with the strength of plastic that can be used  in the actual applications.

This process can help catch design errors before the objects go into mass production. Thus, potentially saving companies thousands of dollars due to the three-dimensional visualization of the product. And if everything is perfect then it becomes a tool to be able to effectively sell their idea or product with a production like model.


  • Proof of Concept Prototypes
  • Design Appearance Models 
  • Design Evaluation Models
  • Engineering Proving Models
  • Investment Casting Patterns
  • Jigs and Fixtures
  • Cast Urethane Master Patterns


Depending on the project, parts are typically delivered in one of four finishing options:

  1. Strip and ship
  2. Standar
  3. Primed
  4. Painted

Parts are removed of excess resin with a chemical bath and cured in an ultraviolet oven. For more advanced applications, parts can be nickel-plated to produce metal-like strength, water-proofing, electromagnetic shielding and enhanced part finish and graphics.

If you’re looking for a rapid prototype, Fusion PM is your trusted Stereolithography source and are ready to assist you!

We have a wide range of materials for this technology, learn more here.