Stereolithography (SLA)

Focusing on High-Resolution Prototyping

Achieve detailed prototypes and end-use parts by curing liquid photopolymer resin layer by layer using a high-accuracy UV light source. This method is perfect for complex geometries, fine features, and stringent high-resolution design requirements, delivering a significantly smoother surface finish than other methods.

Exceptional Detail & Finish: Ideal for visual prototypes and parts requiring minimal post-processing.
Diverse Resin Portfolio: Access high-strength, tough, and specialty resins for functional models.
Layer-by-Layer Precision Manufacturing.
Quick Lead Times & Affordable Costs

Superior Surface Finish

SLA produces parts with the smoothest surface finish straight off the printer compared to most other 3D printing technologies (like FDM). This results in parts that are aesthetically excellent and require significantly less post-processing (sanding, polishing) for final use.

Highest Resolution and Detail

The precision of the laser curing liquid resin allows for exceptionally small feature sizes and tighter tolerances. This makes SLA ideal for applications requiring intricate geometry, fine details, and complex components, such as jewelry or detailed miniature models.

Tight Dimensional Accuracy

SLA parts exhibit excellent dimensional accuracy and precision, making them highly suitable for functional prototyping where parts need to fit together perfectly, and for applications requiring specific, repeatable measurements.

Watertight and Isotropic Parts:

Due to the method of curing liquid resin, SLA parts are solid, isotropic (meaning properties are the same in all directions), and can be easily made watertight and airtight without further sealing, which is a key advantage for fluid-handling prototypes or casings.

Wide Range of Specialty Resins

SLA offers a versatile material palette, including resins with properties mimicking engineering plastics (like ABS and PP), high-temperature resistance, flexibility, and even materials safe for specific applications (e.g., biocompatible resins).

Fast Turnaround for Small/Medium Builds

While large-volume production can be slower than other methods, for smaller and medium-sized high-detail parts, SLA offers a relatively quick build time, allowing for rapid iteration and prototyping cycles.

Recent Projects

Model Car - 11 Inches in Length
Purpose: Car
Material: ABS Resin
Skin Sample Holder - Medical Application
Purpose: Skin Sample Holder - Medical Industry
Overall Size: 69 × 43 × 28 mm
Material: MED-WHT - Biocompatible and Autoclavable
ISO 10993-5:2009 and ISO 10993-10:2010
Learn More
Rain Cover
Purpose: Rain Cover - For Ticket Machine
Overall Size: 124 × 33 × 50 mm
Material: ABS Resin

Our Printers

Formlabs 4BL
Print Volume: 353 x 196 x 350 mm (13.9 x 7.7 x 13.8 inches)
Materials Available: Rigid 10K, Tough 2000, Color Resin, True Cast, Clear Cast, Precision Model, Flame Retardant Resin, Elastic 50A V2, Silicone 40A, ESD Resin, Castable Wax, High Temp, and More
Dimensional Accuracy: 1-30 mm ±0.15% (lower limit: ±0.02 mm)
Layer Height: 50μm and 50 μm

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Discover Our Technologies and Capabilities

Formlabs Fuse 30W+

Advanced SLS 3D printing technology for high-quality, functional parts with exceptional detail and durability.

Fused Deposition Modeling

FDM is a robust and cost-effective 3D printing technology that builds parts by extruded molten thermoplastic filament layer by layer. It is the ideal method for producing strong, durable functional prototypes and tooling where material strength is paramount.

ColorJet Printing

Full-color 3D printing technology that brings your designs to life with vibrant, realistic colors and textures.

Industrial FDM

Leverage Industrial FDM with the Markforged FX10 to produce robust, large-format parts. We deliver strong, precise, and reliable end-use components and functional tooling using engineering-grade composites.

Request a Free SLA Sample From Us

Ready to test the accuracy and durability of industrial additive manufacturing? Submit your project details to request a free, no-obligation sample part. This offer is reserved for businesses and engineers evaluating our services for serious production or tooling applications. See and test the quality before you commit to a full project.

Applications of SLA Printing

Dental
Formlabs 3B+ Dental
Jewellery
Resin Rings
Miniatures
DND Miniatures
Jigs and Fixtures
Small and Complex Jigs
Dental
Surgical guides and tools
Medical
Surgical learning tools
Learn more

Our Full SLA Material Portfolio

Stereolithography (SLA) is an additive manufacturing process that uses a high-accuracy UV light to cure liquid resin layer by layer, delivering parts with exceptional detail and the smoothest surface finish. We offer a wide range of materials, from general-purpose resins (like Clear, Black, Grey) for basic prototyping, to specialty materials like the Tough Series (for durable, impact-resistant parts), Flame Retardant resins, and Biomedical resins for specialized applications.

Tough 2000 Resin

Strong & Stiff; High Strength; Designed to withstand high stress and strain.

Tough 1500 Resin

Resilient & Pliable; Fast Spring back; Balances stiffness and elongation.

True Cast Resin

Wax-Filled Casting; Low Ash Content; Designed for precision investment casting patterns.

Biomedical Resins

USP Class VI Compliant; Biocompatible; Range of properties (clear, rigid, flexible, dental).

Elastic 50A Resin

Shore Durometer 50A; Very soft and highly compressible; excellent elongation.

Flexible 80A Resin

Shore Durometer 80A; Simulates the stiffness of rubber or soft TPU; high elongation.

Clear Resin

Transparent & Stiff; Excellent clarity; can be polished to near-optical transparency.

Rigid 10K Resin

Extremely Stiff & Strong; Glass-filled; highest stiffness and heat resistance among Formlabs resins.

High Temp Resin

High Heat Deflection Temperature (HDT); High stiffness and strength.

Flame Retardant (FR) Resin

Self-Extinguishing; Halogen-Free; UL 94 V-0 and FAR 25.853 rated; high stiffness.