Standard / ABS-like
Display and general prototypes; distinguish rigid, brittle and tough grades.
TECHNOLOGY / SLA · DLP · LCD
What is SLA 3D printing and which resin process should you choose?
Compare SLA, DLP and LCD/MSLA for sculpture, jewellery, prototypes, dental and high-detail parts.
VAT PHOTOPOLYMERIZATION
Liquid resin is cured layer by layer with light
SLA is an early additive-manufacturing process that cures photopolymer layer by layer. Fine detail, smooth surfaces and complex geometry make it useful for high-resolution resin printing, jewellery, sculpture and presentation prototypes.
The everyday term resin 3D printer covers laser SLA, projector DLP and LCD/MSLA. They differ in speed, pixel geometry, exposure behaviour and maintenance.
PROCESS COMPARISON
How SLA, DLP and LCD differ
| Process | Image source | Strength | Best for |
|---|---|---|---|
| SLA | Laser scans each cross-section | Smooth, fine detail | Detailed prototypes, engineering |
| DLP | Projector exposes a full layer | Fast batch production | Jewellery, dental batches |
| LCD / MSLA | LCD masks UV light | Accessible, fine pixel pitch | Models, sculpture, art toys |
RESIN SELECTION
Select resin by function—not colour
Engineering
Tough, flexible, high-temperature or ESD grades require data-sheet and post-cure control.
Castable
Designed for low-residue burnout in jewellery and precision casting.
Dental / Medical
Must be used within the manufacturer's validated indication and workflow.
Important
Uncured resin and cleaning fluids require PPE, ventilation and proper disposal; low odour does not prove safety.
CHOOSING A SERVICE
What to send for an SLA printing quotation
- STL/OBJ/STEP with units and actual dimensions.
- Mark the smallest detail and visible surfaces.
- State quantity, colour, transparency and required properties.
- State whether it will be painted, assembled, cast or exposed to heat.
- Agree support marks, finishing and tolerance.
- Request sample approval before a larger batch.
Turn knowledge into the right production decision
Send us your file, dimensions, quantity and intended use. Our team can compare process, material, finishing and production risk before work begins.
Discuss your project →Original Fast 3D Print editorial based on the cited reference.Reference: Sync Innovation ↗