CUSTOM ONLINE 3D PRINTING SERVICE
Stereolithography (SLA)
3D Printing Service
Print your SLA parts with fast turnaround and wide variety of resin materials as fast as 2-3 days!
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Overview: How SLA 3D Printing Works?
Stereolithography (SLA) is a powerful 3D printing technique ever developed. It produces highly accurate and high-resolution, detailed parts. It’s used directly in end-use, low-volume production, or for prototyping. Unionfab offers over 30 uniquely engineered SLA materials to enable products to the market at reduced production costs.
Why Choose SLA 3D Printing With Unionfab
- Unionfab can provide customers with various SLA 3D Printing materials, including many high- performance materials. At the same time, we jointly develop unique materials for aerospace, medical and other applications with partners to help our customers expand the application scope and depth of additive manufacturing.
- Unionfab has large-scale Industrial-level SLA 3D printers with a max build volume of 2100 x 700 x 800mm.
- Unionfab provides rich post-processing options for SLA parts, and we have the capacity to achieve the best sample effect for you.
Features of SLA 3D Printing
Surface & Detail
SLA has tolerances of +/-.004” per inch, and resin surface is ideal for post-processing like polishing and painting.
Geometry
SLA allows to integrate multiple components as well as thin-walled objects and intricate geometries that traditional method won’t be capable of.
Material Selection
There're various material with special properties like toughness, heat resistance, flexibility, which simulates the end products.
Durability
Photopolymers are not stable over time and most resins don’t have balanced impact/heat resistance.
Cose Saving
SLA is one of the cheapest method for rapid prototyping while preserving a good surface quality and accuracy.
Turnaround
SLA 3D printed parts do not require tooling which reduces the manufacturing lead time from weeks to days, allowing for faster innovation and speed to market.
Scalable Volume
Multiple, identical parts can be built on a single platform at one time, greatly increasing production efficiency.
Scale Effect
The unit cost and lead time will not be reduced as much as casted or molded pa
SLA Design Guidelines
| US | Metric | |
| Max Size | 82.68 in. x27.55 in. x31.50 in. | 2100 mm x 700 mm x 800 mm |
| Normal Size | 31.50 in. x31.50 in. x 21.65 in. | 800 mm x 800 mm x 550 mm |
| Standard Size | 23.62 in. x 23.62 in. x 15.75 in. | 600 mm x 600 mm x 400 mm |
| US | Metric | |
| Normal Resolution | 0.0039 in. | 0.1mm |
| High Resolution | 0.0028 in. | 0.07mm |
| Micro Resolution | 0.0020 in. | 0.05mm |
| US | Metric | |
| Normal Resolution | X-Y: 0.010 in. Z: 0.016 in. | X-Y: 0.254mm Z: 0.406mm |
| High Resolution | X-Y: 0.005 in. Z: 0.016 in. | X-Y: 0.1016mm Z: 0.406mm |
| Micro Resolution | X-Y: 0.0025 in. Z: 0.008 in. | X-Y: 0.0508mm Z: 0.203mm |
SLA Minimum Wall Thickness
Thin Wall >= 0.7 mm
SLA Tolerances
Standard Tolerance: L < 100 mm: ±0.1 mm；L≥100 mm: ±0.1% x L
Z-Axis Tolerance: ≤±0.08mm.
| Standard | Support remove, polish make a smooth surface, no visible layer lines. |
| Custom | Soft-touch paint, clear part finishing, painting, masking, color matching, decals/graphic, and texture finishes are available. |
SLA Available Materials
Standard Resin (White)
Standard Resin (White) is an SLA resin material designed for cost efficiency, a smooth finish, moisture resistance, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
White
Standard Resin (Black)
Standard Resin (Black) is an SLA resin material designed for cost efficiency, a smooth finish, moisture resistance, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
Black
Rigid Resin (White)
Rigid Resin is an SLA resin material designed for cost efficiency, a smooth finish, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
White
High-temp-220D Resin
High-temp-220D Resin is an SLA resin material designed for heat resistance, a smooth finish, dimensional stability, and high strength. It is suitable for assembly and fit checks, functional prototype testing, and low-volume end-use plastic parts, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
Beige
Somos Taurus Resin
Somos Taurus Resin is an SLA resin material designed for a smooth finish, dimensional stability, and toughness. It is suitable for assembly and fit checks, functional prototype testing, and low-volume end-use plastic parts, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
Black
Somos Ledo Resin
Somos Ledo Resin is an SLA resin material designed for cost efficiency, a smooth finish, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
White
Transparent Clear Resin
Transparent Clear Resin is an SLA resin material designed for a smooth finish, transparency, dimensional stability, and high strength. It is suitable for assembly and fit checks, functional prototype testing, and low-volume end-use plastic parts, with selection based on the part geometry, load case, and finishing requirements.
SLA
800 × 800 × 550 mm
Transparent
Casting Resin
Casting Resin is an SLA resin material designed for a smooth finish, transparency, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-volume end-use plastic parts, with selection based on the part geometry, load case, and finishing requirements.
SLA
800 × 800 × 550 mm
Optically clear, near colorless
High Detail Resin (Gray)
High Detail Resin (Gray) is an SLA resin material designed for cost efficiency, a smooth finish, moisture resistance, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
Gray
High Detail Resin (Brown)
High Detail Resin (Brown) is an SLA resin material designed for cost efficiency, a smooth finish, moisture resistance, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
Brown
Tough Resin
Tough Resin is an SLA resin material designed for cost efficiency, a smooth finish, dimensional stability, and high strength. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
1800 × 900 × 600 mm
Bright Green
High-temp-150D Resin
High-temp-150D Resin is an SLA resin material designed for a smooth finish, transparency, dimensional stability, and high strength. It is suitable for assembly and fit checks, functional prototype testing, and low-volume end-use plastic parts, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
Red
Translucent Resin
Translucent Resin is an SLA resin material designed for cost efficiency, a smooth finish, transparency, and dimensional stability. It is suitable for assembly and fit checks, functional prototype testing, and low-cost rapid prototyping, with selection based on the part geometry, load case, and finishing requirements.
SLA
800 × 800 × 550 mm
Translucent
Nylon-like Resin
Nylon-like Resin is an SLA resin material designed for a smooth finish, moisture resistance, dimensional stability, and toughness. It is suitable for assembly and fit checks, functional prototype testing, and low-volume end-use plastic parts, with selection based on the part geometry, load case, and finishing requirements.
SLA
600 × 600 × 400 mm
White
Available Finishes
Default：
In addition to the removal of support structures, the part surface is media blasted to provide a uniform finish.
Other：
· Paint glossy
· Paint matte
· Silk screening
· Dyeing
· Vacuum plating gloss
· Vacuum plating matte
· Polishing
* Want to custom the finish you need? Request in the quoting tool, we’ll evaluate your finishes on a case-by-case basis.
SLA 3D Printing Applications
Prototypes
With SLA, the prototype can be made using nylon material with great functionality. Fast turnaround makes it a good choice for functional prototyping.
Customized Products
The speed and versatility of SLA let variable production of customized gifts/samples for different users become possible.
Batched Products
SLA can be applied to make high-quality small batched products from 1-10,000 units, ideal for small businesses that wishes to test the market’s reaction to their newly developed products.
