Silicone Molding (also known as RTV molding, Urethane Casting, cast urethane, and Vacuum Casting) is a fabrication method that uses silicone molds to produce production-quality parts, without the high costs and lead times of steel or aluminum tooling. Silicone rubber is a two-component, synthetic, flexible, rubber-like material made from silicone elastomers that can be cured at room temperature into a solid elastomer for use in molding.
Production Quality at Low Volumes - This process is a quick, cost-effective way to produce 10-200 units with production-level quality. Typically, each silicone mold will produce upto 20 castings.
Complex Elastomeric Parts - Silicone moulding is ideal for prototyping elastomeric parts such as complex gaskets and overmolds on rigid parts.
High Level of Detail - Silicone moulding allows for almost limitless complexity, including sharp internal corners unachievable with CNC machining, and designs without draft or uniform wall-thickness that can’t be injection molded.
On-demand additive manufacturing – 3D printing combined with traditional processes like casting is a great way to have it all in low-volume production.
Rapid prototyping – With the ability to make changes easily and affordably, urethane casting is an excellent choice for manufacturing prototypes to use in testing or as models for client presentations.
Production-quality parts – Urethane casting is versatile, presenting a wide range of options for limited production runs of functional parts whether requiring elasticity or rigidity in materials.