Stereolithography (SLA) Models and Prototypes

SLA models offer the most accurate type of fit or / and form prototype for the verification of any design before committing to your chosen production route.

Here at CRDM we can offer all aspects of Stereolithography from design right through to production.

Advantages of using us for Stereolithography SLA models…

  • Extreme Accuracy
  • Concentration to fine, intricate detail
  • Our products are easy to finish or paint
  • We can produce big single piece parts on our 3 iPro 8000 machines
  • We provide a conveniently fast turnaround due to having 4 machines

Some Stereolithography considerations…

  • Left untreated, Stereolithography SLA resin is not UV stable
  • Reduced strength compared to SLS and moulded parts
  • Limited temperature range (up to 50 °C)
  • Tolerances depend on geometry but typically ±0.15mm upto 100mm, ±0.15% over 100mm

See Stereolithography (SLA) Tolerance Standards ↗
(Links to 3D Systems UK)

CRDM operate 3 x iPro 8000 with high speed digital scanning and a build volume of 650 x 750 x 550 mm, ProJet® 7000 HD with a build volume of 380 x 380 x 250mm and an SLA 3500


We can also supply 3D Systems ‘Bluestone’ or ‘Ceramax’ (very high temperature resistant ceramic filled resins) if required

Available finishes

All Stereolithography SLA models are built with a 0.1mm layer thickness and can be supplied in basic finish (C3 – support removed and grit blast) through to fully painted and detailed finishes. Our parts built in Accura ClearVue can be clear lacquered or polished to achieve a transparent finish.

We can also easily work to customer supplied drawing if available.

Examples of SLA Accura ClearVue Non Finished (Left), C3 Finish (Center) & PP Lacquer (Right) over an iPad screen. Non Finished has visible lines, C3 is frosted and PP Lacquer is the best quality. Stereolithography SLA 7870 - No Finish - C3 Finish - Polished - iPadExamples of SLA Accura ClearVue C3 Finish (Left), Non Finished (Center) & PP Lacquer (Right) over a printed map. Non Finished has visible lines, C3 is frosted and PP Lacquer is the best quality. Stereolithography SLA 7870 - C3 Finish - No Finish - PolishedIf you would like to talk to a member of our team regarding any further detail on Stereolithography then please do not hesitate to contact us. We would love to help!