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RTV molding is an effective and inexpensive way to create multiple copies of a master prototype part when you need a spec-like material for multiple sets, in a short timeframe, for less than a traditional tool would cost. Silicone molds are capable of reproducing remarkable detail, and because of the flexibility of silicone, draft angles, inserts, and undercuts are not as critical as in other molding processes. Urethane casting materials are a two part liquid that when mixed will imitate most commercial grade plastics such as ABS, Polypropylene, Polycarbonate, etc. Urethanes are also used in many products where rubber-like qualities are required such as cushioned wheel treads, handle grips, over molded grips, etc. The benefits of RTV (Room Temperature Vulcanized) molding are:
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