Stereolithography
SLA Resin 3D Printing Service USA
High-resolution resin printing with 9 engineering resins: Standard, Tough, Flexible, Dental, Castable, High-Temp, ABS-Like, Clear, and Ceramic-filled. Surface quality and dimensional accuracy that rival injection molding.
Get Instant SLA QuoteBuilt for engineers, product teams, and businesses that need functional parts. SLA printing cures liquid resin with a UV laser, producing parts with surface quality and dimensional accuracy that rival injection molding. When your prototype needs to look and feel like the final product, SLA is the answer.
How much does SLA 3D printing cost?
SLA resin parts start at $35 per part. Small high-detail parts run $35–$80, medium parts $80–$250, large parts $250–$800+. Quantity discounts apply automatically from 5 units.
SLA prices are higher than FDM because resin costs 2–4× more per cm³ than FDM filament and layers cure more slowly (30–60 seconds per 50 µm layer). The trade-off buys you ±0.05 mm tolerances, 25–50 µm layer height, and injection-mold-quality surface finish that FDM cannot match.
Material choice drives cost inside SLA as well: Standard Resin is the cheapest tier; Tough, Flexible, and Clear sit mid-range; Dental, High-Temp, and Castable Wax resins are the premium tier. Automatic quantity discounts begin at 5 units (6% off) and scale to 15% at 1,000+ units.
Related: See the full pricing breakdown.
Upload your file to get exact pricingHow long does SLA 3D printing take?
SLA orders ship in 2–4 business days from order confirmation. Rush service compresses to 1–2 days with a 50% surcharge; nationwide shipping adds 2–5 business days.
Print time depends on Z height and layer height: a 100 mm tall part at 50 µm layers runs ~6–8 hours; at 25 µm the same part takes ~12–16 hours. Because the entire layer cures in a single UV exposure, batching many small parts on one plate costs no extra print time — a key economic advantage over FDM.
After printing we wash parts in IPA, UV post-cure in a temperature-controlled oven, remove supports, sand support marks, and QC before packing. Rush production is available at checkout; expedited UPS reaches most US addresses in 1–2 business days.
Related: Compare FDM and SLA turnaround.
Upload your file to get exact pricingLayer Heights
0.025mm - 0.1mm
Tolerances
+/- 0.05mm
Max Build Size
353 × 199 × 400 mm
Materials
Standard, Tough, Flexible, Dental
Surface Finish
Near injection-mold quality
Detail Resolution
50 microns
Frequently Asked Questions
What is SLA 3D printing?
SLA (Stereolithography) uses a UV laser to cure liquid photopolymer resin layer by layer. It produces parts with fine detail, smooth surfaces, and tight tolerances that FDM cannot match. Best for visual prototypes, dental models, and parts that need isotropic mechanical properties.
How does SLA compare to FDM?
SLA produces finer details, smoother surfaces, and tighter tolerances than FDM. FDM offers a wider material selection and lower per-part cost at scale. Choose SLA when surface quality and precision matter most.
Are SLA parts strong enough for functional use?
Tough Resin produces parts with ABS-like mechanical properties suitable for functional testing, snap fits, and short-run production. Standard Resin is primarily for visual prototyping. We help you choose the right resin for your application.
What is the maximum SLA part size?
Our large-format resin printers handle generously sized parts in a single build. Parts beyond that size can be split into sections and bonded post-cure. Because print time scales with Z height only (not part count), batching many small parts on one plate is very efficient.
How long do SLA parts last?
Most SLA resins are not UV-stable and will yellow and become brittle after extended sunlight exposure. Expect 1-2 years indoors before noticeable degradation. For long-term outdoor use, we recommend an FDM material like ASA, or applying a UV-protective clear coat after printing.
Do SLA parts need post-curing?
Yes, every SLA part is washed in isopropyl alcohol and UV-cured in our post-cure ovens to reach final mechanical properties. This is included in the standard turnaround time and price.
What surface finish should I expect?
SLA produces a near-injection-molded surface finish straight off the printer. Support marks on the bottom face are sanded by default. Mirror-polish, paint, and dye finishes are available as add-ons at quote time.
Can SLA parts be used for casting?
Yes. Our Castable Wax resin burns out cleanly for jewelry and small-batch investment casting, leaving zero ash. We also print SLA masters for silicone molding and urethane casting.
Is the dental resin biocompatible?
Yes. Our dental resin is ISO 10993-1 / ISO 7405 certified for short-term mucosal contact (Class IIa medical device), suitable for surgical guides, splints, and orthodontic models. Send us your case files and we will route them through our certified workflow.