Polyurethane Vacuum Casting
On-demand Manufacturing

Low Volume, Durable Parts with Production-Level Quality.
From 1 to 50+ Parts
Fast Delivery

Instant quotes for 1-1,000 
units per CAD

Flexible lead time options Deliver as fast as 5 days

Tolerances down to 
±0.0003’’ (0.010 mm)

ISO 2768 Medium, ISO 9001, AS 9100 , ISO 13485

Vacuum Casting Service

Low Volume, Durable Parts with Production-Level Quality


What is Vacuum Casting?

Vacuum casting is an additive process that uses vacuum casting technology to extract air from a closed area to produce molds, cast castings, or melt metals with complex and difficult properties, enabling efficient manufacturing of cast components.

Vacuum Casting Tolerances

Tolerance:±0.15mm. The maximum volume:2000*1200*1000mm

Precision size: Locating Hole ±0.2mm, Mounting Hole ±0.4mm

The parts can reach the durability requirements of a 10,000km Road Test.


Why Choose Vacuum Casting

When it comes to vacuum casting, there are a number of manufacturers to choose from. Choosing the right one is essential for getting exactly the results you expect. Here are several reasons to choose KAIAO for your vacuum casting needs.

Exceptional Quality and Speed

We combine experience with technology to provide high-quality vacuum casting services within a short period of time (usually within 7-14 days).

Finishing Service Option of your product

In addition to vacuum casting, KAIAO also offers finishing service to your product. Our finishing services include matte, frosted and more.

Material Verification and Testing Services

To ensure exceptional product quality from the get-go, we only use the highest quality resins from the best international brands.

Design for Manufacturing Support

As vacuum casting is often used for prototyping, we know that many of the products we work on haven’t reached their final design. To help them get there, we provide detailed design for manufacturing support to our clients.

Enquire About Vacuum Casting

Do not hesitate to contact us for more information about vacuum casting. Your customer support partner will contact you directly to answer any questions you may have.

Vacuum Casting Service Options

Custom option for Urethane Casting. Customers can choose the services what they want.


Vacuum Casting Color Option

Polyurethanes can be blended with pigments to achieve a variety of colors. Naturally, a urethane may be amber to milky-white in color. 

✔Black  ✔Color-Match  ✔Natural (unpigmented)  ✔Clear (colorless)


Finishes for Vacuum Casting

Available finishing service options for vacuum casting in KAIAO, we will complete your vacuum casting orders with high standard and high efficiency.

✔Matte/Frosted  ✔Semi-Gloss ✔High-Gloss  ✔Custom


Vacuum Casting Materials

Material: PU, imported PU, transparent PU, soft PU, ABS, PP, and PC. It is even possible to create transparent, strengthened, colored and rubber prototypes.

Others: To discover other plastic materials we can do, please contact our team.


Vacuum Casting Service Overview

What is the Vacuum Casting Process?

Step 1:Master building
A silicon form is placed into a vacuum chamber filled with polyurethane. During this process, the silicon mold stays in a constant heating chamber, then warms up to 60-70℃ and then deforms, and solidification is executed in the next procedures.

Step 2: Make the mold and parts
The vacuum sucks out any air trapped inside the silicon form, ensuring no air bubbles in the manufacturing. Also, gas vents are digging during this procession. Considering the complexity of the prototype, generally, each silicon form can produce 10 to 20 pieces.

Step 3: Surface Finish
KAIAO focuses on every detail to provide the best services and perfect products to clients, so finishing making includes polishing, silk screening, laser etching, chrome plating, and more. And this allows the production of high-quality, complex prototypes for numerous purposes, such as functionality tests.

Vacuum casting is best for making visually impressive prototypes, but it can also be used for non-mechanical end-use parts like cases and covers.

The silicone molds used in vacuum casting have a short lifespan, typically around 20 moldings, so we dispose of them after use.
Talk to us directly if you wish to keep the 3D printed or CNC machined master model.