Silicone Rubber Molding

Our innovative silicone rubber molding process produces functional prototypes and production parts within days

  • Industry-leading manufacturing speed
  • Wide selection of silicone rubber materials
  • Get a quote with moldability analysis within hours


Our liquid silicone rubber molding process produces custom prototypes and end-use production parts in 15 days or less. We use aluminum molds that offer cost-efficient tooling and accelerated manufacturing cycles. Our tech-enabled silicone rubber molding process reliably delivers quality parts on time to help you meet your product development goals.


Wide Selection of Silicone Rubber Materials

We stock various grades and durometers of silicone rubber materials to meet your application's requirements, which include:

  • General Purpose Silicone Rubber: Elastosil 3003 (Durometers: 30A - 80A)
  • Fuel-Resistant: Silastic FL 60-9201
  • Medical-Grade: Dow Corning QP1-250
  • Optical-Grade: Dow Corning MS-1002


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  • 25 to 10,000+ parts
  • Shipped in as fast as 1 day
  • Molds starting at $1,995
Common Applications
  • low-volume production
  • bridge tooling
  • pilot runs
  • functional prototyping

Learn How to Reduce Injection Molding Costs

Want to learn more about injection molding design? This on-demand webinar shares various strategies to reduce manufacturing cost when designing plastic molded parts.



design analysis for injection molding

Fast Quoting and Design Analysis

For all injection molding projects at Protolabs you will receive free design analysis with every quote. This will help identify any potential moldability issues before production, saving you both time and cost.

You can also work with our staff of injection molding engineers to further refine your design, identify ways to save costs, and get more details about our silicone rubber molding process.