Prototype Injection Molds
When time and costs are not an issue, the ideal method is to inject mold prototype parts using the selected substrate and TPE materials. This results in the prototype carrying the same qualities as the final product. The problems with this approach are that it is extremely costly, time consuming and inflexible. While cost and delivery depend on complexity and size, typically this prototyping approach costs between $6,000 and $50,000 and takes three to eight weeks to complete.
This process uses one mold to form the base component and another for the overmolded area. Each mold requires a pattern into which the liquid silicone rubber is poured. The cost for patterns and molds typically ranges from $1,000 to $5,000. The lead time is usually one to three weeks.