Urethane Casting
Process
Using silicone molds cast over rapid SLA masters, casting is a perfect method for bridging the gap between prototyping and mass production. Simulating the injection molding method, casting is used to produce rigid or flexible parts, opaque or clear, while offering many advantages:
- Low-cost tooling that is economical for small production volumes and/or large parts.
- Economic startup costs for small series
- More creative possibilities because this method can easily reproduce complex details and allows the molding of thin and thick walls in a single part.
- Encapsulation of inserts or delicate components is easy because casting pressures and temperatures are low. This can reduce assembly costs or solve sealing problems.
Materials
A wide range of urethane or silicone resins are available. In the case of prototyping, urethane resin is selected to reproduce as closely as possible the characteristics of the thermoplastic resin that will ultimately be used in series production. Some meet the UL 94V-0 flammability standard or are FDA compliant. Talk to our technical representatives for the best choice.
 | Urethane List of resins |
Tolerances
Tolerances vary depending on the resin. In general, a tolerance of ± 0.015″ should be expected for the first inch and ± 0.003″ for each additional inch. The geometry of the part and the wall thickness can affect tolerances. It is important to inform us of the critical dimensions to be respected.
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Contact
Marc Jacques
Business development and industrial design
T 418 849-5565 x 233
mjacques@pronto-proto.com
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Jean-Philippe Hommel
Technical Representative and project manager (urethane casting, rapid prototyping)
T 418 849-5565 x 236
Request for quotation: pronto@pronto-proto.com
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