Vacuum Casting Service

Reliable vacuum casting service for prototypes and low-volume production parts at competitive pricing. Highly detailed elastomer parts with excellent quality and faster turnarounds.

Vacuum Casting for Flexible and Economic Production

Vacuum casting or urethane casting is a technology that combines silicone molds and a 3D printed master pattern to create short-run, rigid parts with production-level quality. The process hardens thermoplastic polyurethane inside silicon or epoxy molds. The result is vacuum casting parts with the same shapes as the original master models. The final dimensions of the vacuum casting parts will depend on the master model, part geometry, and the material chosen.

As a leading vacuum casting manufacturer, RapidDirect offers low-cost fabrication of high-quality plastic parts. This technology eliminates the need for expensive upfront investments. Our vacuum casting services offer the complete solution for creating excellent quality prototypes and low-volume production parts.

Why Vacuum Casting

Quote Within One Day, Operate at Your Fingertips

Along with our exceptional vacuum casting service, RapidDirect also offers an effective means of managing your orders with only a few clicks.

Bulk Pricing

No need to request multiple quotes for different quantities of the same part. We provide you with a comprehensive quote with different prices you can use to compare and make the proper order based on your budget.

Real-time Order Tracking

Monitor your order’s delivery status in real time and with relative ease, thanks to our order tracking features. This guarantees that your vacuum casting products will arrive on time.

All-in-one order Management

Have all your vacuum casting parts quotes and orders on one page. Aside from regular updates for existing orders, making future orders is never easier.

Vacuum Casting from Prototyping to Production

Vacuum casting is the ideal solution for creating high-quality prototypes and small-batch parts for different applications. We help you reach your manufacturing goals.

Prototyping

The vacuum casting process involves low-cost tooling to ensure a more accessible and cost-effective way of creating prototypes. Create quality prototypes with various materials and design changes. Test your designs easily and get them ready for functional testing.

Market Testing

We help you create vacuum casting products ideal for market and consumer testing, concept models, and user evaluation. These parts come with high-quality finishes and end-use functionalities. Our urethane casting services allow you to incorporate changes quickly for further testing and market launch.

On-Demand Production

Vacuum cast parts are excellent options for custom and first-run production. You can cost-effectively test product quality before starting full-scale production.

Let's Start A New Project Today

Vacuum Casting Tolerances

RapidDirect offers a range of vacuum casting tolerances to meet your custom requirements. Based on the master pattern and part geometry, we can reach dimensional tolerances between 0.2 – 0.4 m. Below are the technical specifications for our vacuum casting services.

Type	Information
Accuracy	Highest precision to reach ±0.05 mm
Max Part Size	+/- 0.025 mm +/- 0.001 inch
Minimum wall thickness	1.5mm～2.5mm
Quantities	20-25 copies per mold
Color & Finishing	Color and texture can be customized
Typical Lead Time	Up to 20 parts in 15 days or less

Vacuum Casting Materials

You can choose a wide range of vacuum casting materials depending on the peculiarities of your project. These resins are typically analogs of common plastic materials with comparable performance and appearance. We have grouped our urethane casting materials into general categories to help you make the best decisions for your project.

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ABS-Like
Acrylic-Like
Polypropylene-Like
Polycarbonate-Like
PMMA
PS
Elastomer

ABS-Like

Versatile polyurethane plastic resin that is analogous to ABS thermoplastic. Hard, rigid, and impact resistant, it is ideal for various products.

Price: $$

Colors: All colors; precise pantone color matching available

Hardness: Shore D 78-82

Applications: General purpose items, enclosures

Acrylic-Like

Stiff, transparent urethane resin simulating acrylic. It is hard, with medium to high strength and good clarity for see-through products.

Price: $$

Colors: Clear

Hardness: Shore D 87

Applications: Light pipes, see-through components

Polypropylene-Like

Tough, flexible, and abrasion-resistant urethane with low cost and polypropylene-like ductility.

Price: $$

Colors: Black or natural only

Hardness: Shore D 65-75

Applications: Enclosures, food containers, medical applications, toys

Polycarbonate-Like

Rigid, high-impact, and clear material with a wide variety of uses. Easy to machine and finish, simulating polycarbonate.

Price: $$

Colors: Clear and various colors

Hardness: Shore D 82-86

Applications: Light diffusers, signs, skylights, visors

PMMA

UV stable, high-quality urethane resin with good clarity. Great for glossy, clear parts as a classic substitute for acrylic-like.

Price: $$

Colors: RAL/Pantone colors

Hardness: Shore D 90-99

Applications: Lighting, signal display, partition material

PS

High impact strength, low-cost resin with a wide range of options.

Price: $$

Colors: Pantone colors

Hardness: Shore D 85-90

Applications: Displays, disposable items, packaging

Elastomer

Polyurethane plastic resin, simulating rubber-like materials like TPU, TPE and silicone rubber.

Price: $$

Colors: All colors and precise Pantone color matchings

Hardness: Shore A 20 to 90

Applications: Wearables, overmolds, gaskets

Note: You can learn more from our eBook on plastic materials.

Surface Finish for Vacuum Casted Parts

With an extensive array of surface finishes, RapidDirect can create unique surface layers for your vacuum casting parts. These finishes help you meet your products’ appearance, hardness, and chemical resistance requirements. Depending on your material selection and part applications, we can offer the following surface finishes:

Available Finishing

Description

SPI Standard

Link

High Gloss	Highly reflective surface finish created by polishing the master pattern before mold making. The high-gloss finish offers high transparency useful for cosmetic parts, lenses, and other cleanable surfaces.	A1, A2, A3	Learn More>>
Semi Gloss	This B grade finish is not highly reflective but offers some sheen. Using gritty sandpaper, you will get smooth, cleanable surfaces between high-gloss and matte.	B1, B2, B3	Learn More>>
Matte Finish	Vacuum cast parts will have a satin-like finish through the bead or sand blasting of the master pattern. The C-grade finishes are ideal for high-touch areas and handheld components.	C1, C2, C3	Learn More>>
Custom	RapidDirect can also provide custom finishes through additional processes. On request, you can get unique secondary finishes for the best results.	D1, D2, D3	Learn More>>

Gallery of Vacuum Casting Parts

We have been helping various industries such as aerospace, automotive, medical devices and other industries to develop various elastomeric vacuum cast parts since 2009.

See What Our Customers Say About Us

A customer’s words have a more substantial impact than a company’s claims – and see what our satisfied customers have said regarding how we fulfilled their requirements.

Because of RapidDirect’s technological competency, we were able order high-quality custom elastomer parts at reasonable costs. Despite the complexity of our design, RapidDirect delivered excellently fabricated castings with consistency and superior quality. We also benefited from the many customization options to make the castings more desirable.

Gabriel Smyth

– Tooling Design Engineer

We have benefited greatly from RapidDirect’s urethane casting capabilities. Our company needed pre-launch prototypes for first-run functional testing, and they recommended urethane casting as the ideal option. We got high-quality castings that met every one of our specifications. Our customers have expressed satisfaction in terms of usage of these components.

Remi Haslam

– Project Manager

I wholeheartedly recommend RapidDirect’s vacuum casting services for any company looking to produce precise castings. Over the past 6 years, I have examined a lot of casting tools made by different companies and concluded that RapidDirect offered incredible value. When you consider the machine’s cost, quality, and output, I’m confident you won’t find a better casting service for your money.

Thierry Breitkopf

– Chief Engineer

Our company handles a lot of complex cases. Since we started using RapidDirect, the castings’ consistency, quality, and cleanliness have all significantly improved. Their quick response, manufacturing efficiency, and fast delivery saves us a lot of time.

Steven Goldberg

– Outsourcing Manager

It was an honor to be one of the first labs to use RapidDirect. Over the past ten years, we have discovered that the outcomes we achieve are astounding. Every time, the castings produced are solid and free of pores. RapidDirect units improve bond strength and polishability by maintaining the plastic’s structure. It is perfect machining!

Malachi Clerf

– Designer

Our Vacuum Casting Service for Various Industrial Applications

Due to its fast production, low costs, and durable parts, our vacuum casting service is the favored option for making custom parts used in the automotive, medical, consumer goods, and other industries.

Automotive

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Aerospace

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Consumer Goods

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Medical Devices

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Robotics

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Injection Molding

Sheet Metal Fabrication

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Vacuum Casting for Flexible and Economic Production

Why Vacuum Casting

Unmatched Lead Time

Complex Geometries Support

Flexible Color Options

Material and Finishing Selection

Consistent Quality

Professional Vacuum Casting Specialists

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Vacuum Casting from Prototyping to Production

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Vacuum Casting Tolerances

Vacuum Casting Materials

ABS-Like

Acrylic-Like

Polypropylene-Like

Polycarbonate-Like

PMMA

PS

Elastomer

Surface Finish for Vacuum Casted Parts

Gallery of Vacuum Casting Parts

See What Our Customers Say About Us

Our Vacuum Casting Service for Various Industrial Applications

Automotive

Aerospace

Consumer Goods

Medical Devices

Robotics

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