Cast Urethane/RTV Molding
Cast urethane prototypes are created from RTV (Room Temperature Vulcanization) silicone rubber molds. It provides a quick and cost-effective way to emulate injection molded plastic parts without the high price of permanent tooling. Cast urethane parts are commonly used for marketing, functional testing and low volume runs when less than 100 parts are needed.
The process begins with a master model. Typically a Stereolithography (SLA) rapid prototype is used for the master but a physical part can also be used. The master is encapsulated in silicone rubber. After the rubber cures, the master is removed creating the RTV mold.
Our casting procedures include a unique mix of vacuum, heat and pressure environments that define the cutting edge in casting. This allows us to produce anywhere from single parts to short or medium production runs with consistent dimensional features, void free parts, a variety of textures and colors. Our Color matching systems are based on the Pantone color scheme and textures matched to the industries standard moldtech. With a full range of materials like ABS, flexible urethanes, high impact, high temp, medical grade, FDA approved, glass filled, optical clear, flame retardant, 12 sec burn compliant, UL94VO, 2 shot over mold, insert over mold, silicone keypads and parts ETC. Or anything in between, (our project management staff is very well versed in all of these materials and procedures and will be happy to assist you in choosing the right one for your project).