SLA RESIN PRINTING
SLA (stereolithography) uses UV light to cure liquid resin layer by layer, producing parts with ultra-fine detail and smooth surface finishes unmatched by filament-based printing.
HOW SLA PRINTING WORKS
Your 3D model is sliced into ultra-thin layers (25-100 microns). Support structures are generated for overhangs.
A UV LCD screen selectively cures each layer of liquid resin in the vat, hardening it into solid plastic.
The build plate lifts between each layer. The process repeats, building the part upside-down from the plate.
Parts are washed in isopropyl alcohol to remove uncured resin, then UV-cured in a curing station for full hardness.
STRENGTHS & LIMITATIONS
RESIN TYPES
STANDARD RESIN
TOUGH / ABS-LIKE RESIN
FLEXIBLE RESIN
HIGH-TEMP RESIN
REQUIRED FINISHING STEPS
Parts are cleaned in isopropyl alcohol (IPA) to remove uncured resin from the surface. This is essential — skipping it leaves a tacky, sticky finish.
Washed parts are placed in a UV curing station to reach full hardness and mechanical properties. Without curing, parts remain soft and weak.
Thin support structures are clipped away with flush cutters. Support marks can be sanded smooth for a clean finish.
WHEN TO CHOOSE SLA
Tabletop gaming miniatures, collectible figurines, and small sculptures where fine detail is critical.
Casting masters and patterns for jewellery production. Sharp edges and smooth surfaces reduce finishing work.
Dental aligners, surgical guides, and anatomical models requiring precise dimensional accuracy.
Product mockups and presentation models where surface finish matters more than mechanical performance.
Thin-walled housings and enclosures for electronics where precise fit and clean aesthetics are required.
Detailed ornaments, architectural models, and art pieces that benefit from the smooth, injection-mould-like finish.
GET AN SLA QUOTE
Upload your model and select SLA to get an instant resin printing quote. Includes wash and UV cure as standard.