Vacuum casting (also known as urethane casting) is an economical alternative to low-volume injection molding of plastic parts and can be used to closely simulate final molded parts or finished products. Generally, molds are made from silicone rubber and use CNC machining or SLA part as a master pattern. These molds duplicate intricate details and textures and give consistent finishes from one part to the next. You can get production-like results including mechanical traits, wall thickness, colors, and surface finishes.

Advantages of Vacuum Casting

• Low cost for silicone molds – eliminates the need for expensive and time-consuming metal tooling
• Fast delivery – up to 50 functional cast urethane parts in 10–15 days
• Wide selection of materials – from soft and flexible to rigid and impact-resistant, with colored and clear options
• High precision and fine details – production-level quality with excellent accuracy
• Excellent surface finish – superior textures compared to CNC prototyping or 3D printing