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Skip to content Vacuum casting is a production technique that produces plastic components of high quality. Vacuum Liquid resin is poured into silicone molds.
The procedure is optimal when precise prototypes are required and the volume of production parts is small and the surface detail and material performance are superior.
Rapid Precision develops a high precision master parts normally through 3D printing or CNC machining to establish the form and finish of the part.
The master pattern is put into a liquid silicone mold in order to create a flexible instance of the pattern. This enables high detail and accuracy of replication.
Urethane resin is cast under vacuum in order to remove air bubbles. The part is completed after drying and checked to produce constant production parts.
Rapid Precision provides reliable services of vacuum casting. Our services include high quality of surfaces, a high degree of dimensional control, and rapid turnaround. Vacuum casting is a perfect choice in terms of functional prototypes and low-volume production due to the consistency of the results provided by our professional staff. We assist you in mold making up to finished components, provide flexible materials, high quality inspection, and low cost manufacturing depending on your project requirements.
Maintains electrical properties while creating a protective oxide surface. Essential reliable electrical grounding.
Achieves a near-optical level of clarity on the material’s surface. Perfect for clear plastic prototypes.
Uses ultra-fine abrasives to create a high-gloss finish. Produces a decorative shine for high-end components.
| Feature | Description |
|---|---|
| General Tolerances | Metals: ISO 2768-M Plastics: ISO 2768-C |
| Precision Tolerances | Achieves tolerances as tight as ±0.001 in. |
| Minimum Wall Thickness | 0.5 MM allowing lightweight designs. |
| Minimum End Mill Size | 0.5 MM for fine detail machining. |
| Maximum Part Size | CNC Milling: 4000×750×660 MM CNC Turning: 200×500 MM |
| Minimum Part Size | CNC Milling: 5×5×5 MM CNC Turning: 2×2 MM |
| Production Volume | Prototyping: 1–100 PCS Low volume: 101–10,000 PCS High volume: 10,001+ PCS |
Rapid tooling let’s you go faster to go from an idea to functional parts. With our advanced CNC machining service, we create molds and tooling with precision needed to test designs, validate fit, and function and bring products to market faster. It’s perfect for prototypes, low volume runs, and early-stage development where outworking competitors is critical and precision matters most.
For our production tooling, we prioritize long-term durability. With top grade materials and precision CNC machining, we make tooling that allows full-scale production without losing accuracy. If you need thousands of the same parts, and even with batch production, we deliver consistent, reliable tooling and stable production cycles.
Our vacuum casting services use polyurethane-based casting resins designed to replicate injection-molded plastic behavior.
Material selection is based on mechanical properties, surface finish, and end-use simulation.
Balanced strength and impact resistance for functional prototypes and housings.
Grades
Standard ABS-Like
High-Impact ABS-Like
Flexible and fatigue-resistant material for snap-fit and living-hinge parts.
Grades
Standard PP-Like
High strength and heat resistance for rigid functional components.
Grades
High-Temperature PC-Like
Tough and wear-resistant material for mechanical prototype parts.
Grades
Standard Nylon-Like
Elastic material for gaskets, seals, and soft-touch components.
Grades
Shore A30
Shore A50
Shore A70
Transparent material for visual models and optical parts.
Grades
Standard Clear
High-Clarity Clear
Material designed for basic flame resistance requirements.
Grades
UL94 V-0 Equivalent
Resin capable of withstanding elevated temperatures for functional testing.
Grades
High-Temp PU Resin
We are your trusted manufacturing partner. Precision Machining and Efficient Management Delivery of High-Accuracy Global Parts. We guarantee consistent quality and transparency with punctual and reliable lead times.
We are with you every step of the way, from validating a design to mass production.
Our work begins with understanding your design with engineering clarity. Knowing that the starting point of every successful product is understanding the engineering aspect, we work with you to comprehend design needs, analyze the specifications, and make manufacturable parts. Our early risk assessments streamline revisions, contain costs, and deal with ever-decreasing performance variability.
Change concepts into real-life components fast and with ease. Rapid Precision services enable you to validate your design, test its functionality, and work out any remaining details before entering the production phase, allowing complete design confidence. Directly accompanying any design stage, fast production welcomes you to the design stage without demand to sacrifice precision.
When your design is production-ready, we make the transition to production seamlessly. Supporting low, medium, and high-scale production, we maintain the same quality, repetition, and precision in each manufacturing run. Adaptable workflows allow for smooth production transitions as demand increases.
The meticulous nature of our work carries through all aspects of our business. Each component undergoes a thorough review to meet the required specifications and standards to be qualified for shipping. Following our extensive and streamlined order delivery process, we guarantee our customers receive parts that are ready to be joined and utilized for intended purpose in a timely fashion, without exception.
We guarantee that CNC parts are delivered on time and that the process is completely transparent in the following 3 simple steps:
Instant prices with DFM feedback for many file types.
You can select from many materials and methods.
View the QC documentation and inspection photographs.
At Rapid Precision, we know price and timeline go hand in hand. Our CNC machining services can work around your budget and deliver on your deadline. Get a quote instantly and select the service to meet your requirements.
Vacuum casts are applied to functional prototypes and low volume plastic components that need high quality of surfaces and details.
The silicone mold usually gives 15-30 parts, which varies according to the shape of the parts and the choice of materials.
Rapid Precision is also providing PU resins such as ABS like, PC like, rubber-like like and transparent products to suit various applications.
Yes, vacuum casting is the best option when the quantity of parts to be made is low, when testing a product in the market, and when making a bridge prior to injection molding.
The majority of the vacuum casts take about 7-15 days to make the mold, cast and finish.
We stay true to industry standards that have to do with quality and safety, like ISO 9001:2015 and AS9100. We assess and check every part multiple times to ensure that inspections have been done thoroughly and that we can offer no exceptions to your needs.
With our CNC machining service, bringing your ideas is a thing of the past. We create prototypes with the functionality or you to improve your ideas with minimal to no impact on production.
High-quality production of machined parts is possible without the need for high volumes of parts. Our low-volume production service is tailored with high-volume flexibility to suit your early-stage product needs.
Your entire production workflow is managed by us from start to finish. Scheduled delivery is guaranteed for all projects regardless of complexity.
Rapid Precision brings your ideas to life. We stand beside your project all the way to production, manufacturing reliably to achieve repetitive outcomes with quality and on time.
