At a Glance
About the Process
Urethane casting (also known as RTV molding, cast urethane, and silicone molding) 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.
Urethane Casting production consists of three main steps:
- Build a master pattern using 3D printing or CNC machining
- Build the mold by pouring platinum silicone around master
- Pour liquid polyurethane resin into mold, create polyurethane casting under vacuum
Colors & Finishing Options
Precise Color Match
If you are familiar with designing parts for injection molding, you can apply the same best practices and rules of thumb to design parts for urethane casting. For a detailed resource on how to design your parts for urethane casting, download our free Urethane Casting Design Guide.