Precision Rapid Prototyping SLA Services with Exceptional Surface Finish

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Mitigation strategies

Stereolithography (SLA) Resin 3D Printing Service

We offer SLA 3D printing services for rapid prototyping, with a variety of thermoset resin materials available.

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Certifications:
Certifications: ISO 9001:2015
ISO 9001:2015
Certifications: ISO 13485:2016
ISO 13485:2016
Certifications: IATF 16949:2016
IATF 16949:2016

What is SLA in Rapid Prototyping?

Stereolithography (SLA) is a versatile 3D printing process ideal for creating concept models, cosmetic prototypes, and complex parts with delicate geometries. It uses an additive manufacturing approach, curing thermoset resin with a UV laser to build parts layer by layer. SLA stands out for its wide material selection, ultra-high feature resolution, and the ability to deliver high-quality surface finishes for various application needs.

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rapid prototyping sla

How Does SLA 3D Printing Work?

The SLA machine first traces support structures, then the part itself, using a UV laser on liquid thermoset resin. After each layer cures, the platform lowers, a recoating bar applies new resin, and the cycle repeats until printing finishes.

Newly printed parts are cleaned with solvents in a lab, then supports are manually removed. Parts undergo UV curing to solidify surfaces, followed by custom finishing. To avoid degradation, SLA parts should be used with minimal UV exposure and humidity.

SLA 3D printing process
SLA 3D Printing Services

Why Choose SLA?

As an advanced additive manufacturing process, Stereolithography (SLA) excels at producing 3D printed parts with miniature features, tight dimensional tolerances, and uniformly smooth surface quality.

Design Guidelines and Capabilities of SLA

Our basic guidelines for stereolithography include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time.

*Swipe right to view all
TypeOptions USMetric
Max Part SizeNormal Resolution29 in. x 25 in. x 21 in. *736mm x 635mm x 533mm
High Resolution 10 in. x 10 in. x 10 in.254mm x 254mm x 254mm
Micro Resolution5 in. x 5 in. x 2.5 in.127mm x 127mm x 63.5mm
Layer ThicknessNormal Resolution0.004 in.0.1016mm
High Resolution0.002 in.0.0508mm
Micro Resolution0.001 in.0.0254mm
Minimum Feature SizeNormal ResolutionX-Y: 0.010 in. Z: 0.016 in.X-Y: 0.254mm Z: 0.406mm
High ResolutionX-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: 0.0635mm Z: 0.203mm
Minimum Wall ThicknessNormal Resolution0.010 in.0.254mm
High Resolution0.004 in.0.1016mm
Micro Resolution0.0025 in.0.0635mm
Minimum Hole SizeNormal Resolution0.025 in.0.635mm
High Resolution0.020 in.0.508mm
Micro Resolution0.015 in0.381mm
TolerancesFor well-designed parts, tolerances in the X/Y dimension of ±0.002 in. (0.05mm) for first inch plus 0.1% of nominal length. (0.001mm/mm), and Z dimension tolerances of ±0.005 in. for first inch plus 0.1% of nominal length, can typically be achieved. Note that tolerances may change depending on part geometry.

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SLA 3D Printing materials

SLA Printing Material Options

✔️ ABS-Like White (Accura Xtreme White 200)

✔️ ABS-Like Gray (Accura Xtreme Gray)

✔️ ABS-Like Black (Accura 7820)

✔️ ABS-Like Translucent/Clear (WaterShed XC 11122)

✔️ PP-Like Translucent White (Somos 9120)

✔️ PC-Like Advanced High Temp (Accura 5530)

✔️ PC-Like Translucent/Clear (Accura 60)

✔️ Ceramic-Like Advanced HighTemp (PerFORM)

✔️ True silicone

Mitigation strategies

Surface Finishing Options

Right out of the liquid resin vat, raw SLA parts are far from shelf-ready. They emerge dripping with sticky, uncured monomer and are anchored to dense support structures that can leave nasty scars if not meticulously removed. Furthermore, premium clear resins naturally look cloudy and foggy straight after printing.

To turn raw prints into injection-molded-quality aesthetic models or high-precision functional parts, we offer rigorous manual post-processing and surface refinement. Explore our professional SLA finishing options below:

· Standard Finish / Support Removal & Post-Curing

All parts undergo thorough isopropyl alcohol (IPA) washing and automated UV post-curing to achieve complete polymerization and full mechanical strength. Support structures are carefully clipped by hand, and remaining contact tips are lightly sanded to ensure a flush, clean, and dimensionally accurate surface profile.

· Hand Sanding & Mirror Polishing

Using progressive wet-sanding grits (up to 2000+) and specialized buffing compounds, our technicians eliminate any remaining layer lines and support scars. This process is essential for premium aesthetic models, and it transforms cloudy raw "clear resin" prints into optically clear, glass-like components.

· Custom Painting & UV-Resistant Coating

For exhibition-grade or consumer-testing models, we apply professional primers followed by custom color-matching (Pantone or RAL) in matte, satin, or high-gloss finishes. We also offer specialized UV-blocking clear coats to prevent the natural yellowing and degradation of SLA resins when exposed to sunlight.

SLA with ABS for cheap and rapid prototyping

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