SLA 3D Printing
Services
DFocus PROTOTYPE offers professional SLA (Stereolithography) 3D printing services with exceptional surface finish and fine details. Ideal for visual prototypes, master patterns for casting, and precision parts requiring tight tolerances.
- Ultra-Fine Resolution up to 25 microns
- Smooth Surface Finish (Ra 1.6-3.2)
- Wide Range of Engineering Resins
25μm resolution. Smooth surface Ra 1.6-3.2. 20+ resins.
What is SLA 3D Printing?
SLA (Stereolithography) is the original 3D printing technology, invented by Chuck Hull in 1984. It uses a UV laser to cure liquid photopolymer resin layer by layer, creating highly detailed and accurate parts with smooth surfaces.
Unlike FDM printing, SLA produces parts with virtually no visible layer lines, making it ideal for visual prototypes, master patterns for casting, and applications requiring fine details.
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Why Choose SLA Printing?
Discover the advantages of stereolithography for your next project.
High Resolution
Layer thickness from 25-100 microns for extremely fine details and sharp edges.
Smooth Surface
Near-injection-mold quality surface finish with minimal post-processing.
Tight Tolerances
Dimensional accuracy of ±0.1mm for precision fit and assembly.
Complex Geometry
Print intricate designs with thin walls and fine features not possible with other methods.
SLA Resin Materials
We offer a wide range of engineering-grade photopolymer resins for various applications.
Standard Resins
General-purpose resins for visual prototypes and concept models.
- White, Black, Grey, Clear
- High detail and smooth finish
- Cost-effective prototyping
Engineering Resins
High-performance resins for functional prototypes and testing.
- Tough, Durable, Flexible
- High heat resistance (HDT 80-120°C)
- ABS-like, PP-like properties
Specialty Resins
Advanced materials for specialized applications.
- Castable for jewelry/dental
- Ceramic-filled composites
- Biocompatible (medical)
Common Applications
Visual Prototypes
Presentation models, design reviews, and client approvals with exceptional detail.
Master Patterns
High-quality masters for urethane casting and silicone molding.
Medical & Dental
Surgical guides, dental models, and biocompatible devices.
Verified Precision
We don't just claim precision; we verify it. Every part undergoes rigorous inspection using advanced metrology equipment.
Precision
25μm Resolution
Inspection
CMM Reports
Certified
Full QC
Finish
Ra 1.6-3.2μm
SLA Printing FAQ
What is the difference between SLA and FDM?
SLA uses a laser to cure liquid resin, producing smoother surfaces and finer details than FDM (which extrudes melted plastic). SLA is better for visual prototypes and precision parts, while FDM is more economical for larger, functional parts.
What is the maximum part size for SLA printing?
Our SLA printers can produce parts up to 600 x 600 x 400mm. For larger parts, we can split the model and assemble post-printing with seamless joints.
Are SLA printed parts waterproof?
Yes, fully cured SLA parts are watertight and can hold liquids. However, some resins may absorb water over time. For long-term water exposure, we recommend specific waterproof resins.
Can SLA parts be painted or plated?
Absolutely! SLA parts accept paint, chrome plating, and other finishes exceptionally well due to their smooth surface. We offer various finishing options including prime, paint, and hydrographic printing.
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