Stereolithography (SLA®)
SLA is an additive fabrication process utilizing a resin and a UV laser to build parts a layer at a time. SLA provides prototypes that are rigid and tough or flexible and durable with good surface finish.

 First commercially available rapid prototyping technology
 UV laser cures liquid polymer resin into a hardened plastic


Available Materials (Click on each material to view data sheets)
 DMX-SL™ 100
 WaterShed® XC 11122
 ProtoGen™ 18420
 ProtoGen™ 18920 Gray
 ProtoTherm™ 12120
 DSM Somos® 8120
 DSM Somos® 9120
 DSM Somos® 9420


SLA Strengths
 Fine detail with good surface finish
 Wide variety of resins available
 Can be painted and finished for presentation
 Excellent for form/fit and patterns


SLA Weaknesses
 Support structures required
 Limited to polymers
 Typical tolerance is 0.005” to 0.015“
 Limited size (20” X 20” X 24”)



Click here to compare SLA materials using our Selector Guide