Vacuum Casting Services
Get top-quality vacuum casting services with fast turnarounds for prototypes and small production runs. Partner with an industry leader in vacuum casting and enjoy unbeatable precision and material options.
- Free Quotes & DFM Insights
- Reliable, Production-Grade Quality
- Parts Ready in as Little as 3 Days
What is Vacuum Casting?
Vacuum casting, also known as silicone or polyurethane casting, is a process that replicates a master pattern using a silicone mold filled with a material such as polyurethane resin under vacuum.
This helps eliminate air bubbles and ensures parts are precise, uniform, and have complex shapes.
It’s ideal for low-volume production and rapid prototyping and can produce parts with surface finishes and mechanical properties similar to those of injection molding.
Industries such as automotive, aerospace, and consumer products benefit from the high-quality, customized products that can be manufactured this way.
With lower tooling costs and quicker turnaround times, vacuum casting is a cost-effective option for companies looking to innovate without breaking the bank.
Start Your Vacuum Casting Project Today
Ready to bring your design to life? Get a custom quote for your vacuum casting project today!
Vacuum Casting Materials
Explore a range of high-quality materials for vacuum casting, tailored to meet your project’s specific needs and performance requirements.
| Material | Description | Appearance | Subtypes |
|---|---|---|---|
| Soft-rubber-like | Vacuum casting is a great way to make rubber parts and prototypes. The soft, rubber-like materials work well for parts that need to be flexible and strong, used in both industrial products and things for everyday use. | Colorless Transparent, Yellow Transparent | T0387,8400 |
| PA-like | PX223 is a material similar to nylon, used in silicone molds to make strong, flexible parts that can handle a lot. | Black, Tawny | PX223 |
| ABS-like | Vacuum casting lets you make strong, ABS-like parts that resist impacts and insulate well. These parts are often used for electronic casings, car parts, and more. | Beige, Black, Milky white | Hei-Cast 8150, PZ858, 6160, P+600 |
| PP-like | UP 5690 has similar properties to real PP and HDPE materials. It’s easy to work with, strong against impacts, and flexible. It's great for making bumpers, equipment boxes, covers, and tools that reduce vibration. | White, Black | UP 5690 |
| PMMA-like | Urethane casting is a good way to make clear parts. PX-5210 isn’t as clear as real PMMA, but it has decent transparency, is easy to polish, doesn’t yellow, and holds up well under UV light. This makes it a solid choice for many uses where clear parts are needed. | Transparent | PX 5210 |
| PC-like | PX520 is used in silicone molds to make prototype parts and models that have similar strength and toughness to real PC (polycarbonate) material. | White, Clear | PX520 |
Our Surface Finishes for Urethane Casted Parts
Achieving smooth, flawless surfaces—our surface finishes for urethane casted parts deliver both durability and aesthetic excellence.
| Available Finishes | Description |
|---|---|
| Matte/Frosted | The parts have a smooth, satin finish because the master pattern was bead-blasted to a matte texture. Parts that are clear or see-through will look frosted with this finish. Matte finishes are great for areas that are often touched because they hide fingerprints better. |
| Semi-Gloss | Semi-gloss finishes have a little shine, but not too much. They’re in between shiny (high-gloss) and flat (matte), giving the surface a smooth look that’s easy to clean. |
| High-Gloss | A glossy finish with a lot of shine needs the master pattern to be polished before making the mold. This finish has a shiny look and makes clear parts look the clearest. High gloss is great for models that need a smooth, clean surface or for lenses. |
| Textured | Texture is added to the master pattern using paint and manual methods before making the mold. Texturing is helpful for areas that get a lot of use, like handles, because the bumps and grooves improve grip and reduce fingerprints or scratches. |
| Custom | GS Proto can also offer extra services like adding finishes, painting, and more. |
Put Your Parts into Production Today!
Ready to bring your design to life? Get a custom quote for your vacuum casting project today!
Manufacturing Capabilities for Vacuum Casting Services
Review our vacuum casting capabilities outlined below, highlighting key service parameters and production details.
| Specifications | Tolerance |
|---|---|
| Accuracy | Highest precision to reach ±0.05 mm |
| Maximum Part Size | 2000 x 1000 mm |
| Minimum Wall Thickness | 1.5mm~2.5mm |
Note: The data is for reference purposes only, and the exact figures may vary depending on the situation. Feel free to contact us, and we’ll be happy to provide more details!
Vacuum Casting Tolerances
Discover the precise tolerances we offer with vacuum casting, ensuring your parts meet the highest standards for fit and functionality.
| Description | Tolerance Notes |
|---|---|
| Distance Dimensions | +/- 0.010” or +/- 0.003” per inch, whichever is larger, is typical. Irregular or overly-thick geometries may cause deviances or deflection due to shrinkage. |
| Shrink Mitigation | A shrinkage rate of ±0.15% can be expected due to thermal expansion of the liquid, and the response of the flexible mold. |
| Surface Quality | Surface finish is externally smoothed to a satin or matte surface. Grow lines may be present on internal or difficult-to-access features. Polishing or custom finishes must be clearly defined and agreed upon at the point of order. |
| Feature Definition | Sharp corners and text may appear slightly rounded. |
| Size Recommendation | The maximum part size for vacuum casting is 2000 x 1000 mm. |
Note: The data above is for reference only. Please verify the exact specifications based on your specific requirements. Feel free to contact us for more details!
Why Choose Us
Experienced Vacuum Casting Manufacturer
With years of vacuum casting experience, GS Proto delivers top-quality service, ensuring every project meets industry standards.
Unlimited Customization Options
Select from millions of material, finish, tolerance, marking, and certification combinations for your order.
Effortless Hassle-Free Delivery
Receive your parts directly, without the need for sourcing, project management, or shipping.
Certified Supplier Network
ISO 9001:2015, ISO 13485, and AS9100D certified—only top shops pass our qualification process.
How to Work with Our Vacuum Casting Service
Partnering with GS Proto for vacuum casting is simple and efficient. From submitting your CAD design to production, we make every step smooth to deliver precise, high-quality results.
FAQs
Get Free Urethane Casting Quote
Ready to bring your design to life? Get a custom quote for your vacuum casting project today!
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