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  • Vacuum Casting for Flexible and Economic Production

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    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, Breton Precision 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.

    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

    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

    Surface Finish for Vacuum Casted Parts

    With an extensive array of surface finishes, Breton Precision 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

     

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    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


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    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


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    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


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    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


    3D Printed Parts Produced by Breton Precision

    View the precision and versatility of Breton Precision 3D print items, from single prototype to intricate production-grade components,
    made to elevate your project’s potential.

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    Vacuum Casting Tolerances

    Breton Precision 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

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