Liquid Silicone Molding

Liquid silicone molding (LSR) is a fast growing elastomeric molding operation. We focus on process, tooling, and product technology innovation to offer the most advanced durable products available. Typical applications for this process are often specified for electric connectors, medical devices, seals, and kitchen cookware, plus other similar products where smooth surfaces are desired and conditions requiring demanding applications.

Liquid silicone rubber molding (lsr) involves a thermoset method at room temperature where compounds mixed and pumped into a hot mold. As liquid silicone rubber flows readily into very thin cross sections, tight radii, thick and/or thin features. Tooling surfaces do not have to be highly polished, and draft angles are not required to facilitate removal of the finished component from the tooling. When the cure cycle is complete, the molded silicone can be removed without concern of distortion or tearing as the silicone is fully cured. The (LSR) process is replacing gum base compression molded silicone in many applications to reduce lead time wherever possible – and to facilitate fast design-to-production cycles.

Rubber Casting Properties:

  • Ease of Sterilization
  • Extreme Temperature Range
  • Durable
  • Flexible
  • Superior Chemical Resistance
  • Superior Dielectric Insulation
  • Transparent

ProtoEdge helps with identifying the needs of end users and developers a vision of options for tooling and product technology in advanced product development. Depending on 3D part model complexity, we offer prototypes and low-volume parts in the rubber casting process. And since the process is similar to transfer molds, transitioning into high mass volume is absolute.

For more information about custom rubber components or any of our other capabilities please call us at (612) 432-4303. Let us quote your next pending project.



Company Brochure

Contact Us

Phone: +1 (612) 432-4303
Fax: +1 (763) 425-5040

8550 Revere Lane N.
Suite 228
Maple Grove, MN 55369

Image Gallery

Learn more from our website and then contact us for a more detailed consultation.