Flexible Castings

Precision-engineered flexible cast components and bespoke silicone gaskets, built to your exact specification.

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Flexible gaskets can be effectively created using solid, rigid molds made from materials like 3D printed PLA/resin, metal, or wood. The most common materials for this process are RTV (Room Temperature Vulcanizing) silicone rubber and polyurethane elastomer. This method is widely used for prototyping and small-scale production, often employing techniques such as gravity pouring or compression moulding to produce detailed, durable, and customizable sealing solutions.

Moulding Methods
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- Compression Moulding: A fast-curing silicone is placed into both halves of a 3D-printed mould, which is then clamped together, simulating mass production for prototyping.
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- Gravity/Injection Filled Moulding: A two-part mould is used where liquid silicone is injected into a channel, filling the cavity from the bottom up and allowing air to escape through vents.
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- Open-Face Mould: This method is suitable for simpler, one-sided designs, but it may lead to a non-level gasket with a meniscus edge.

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“The quality of their work, attention to detail, level of service, as well as their ability to keep pace with the rapidly evolving technologies in this space, has continued to prove invaluable. A particular strength is being able to work alongside their modelmakers whilst exploring and developing designs, finding ingenious ways to create looks like and works like models as well as producing high quality presentation models that are often better looking than the final moulded product!”

Senior Consultant

Industrial Design Company

Flexible Castings

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