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UV-Curing Silicone Rubbers Enable New Medical Concepts and Part Designs

Medical Devices

Silicone elastomers have many properties that make them well suited for applications in the healthcare industry. These materials feature biocompatibility, strong heat aging properties, high chemical resistance, ultraviolet (UV) stability, low compression set, purity, clarity, ease of processing, and stable mechanical properties at a temperature range from –40°C to 200°C.

Typically, liquid silicone rubber (LSR) is cured by a platinum-catalyzed hydrosilation reaction, but Momentive Performance Materials has developed a new family of silicone rubbers can be cured by UV light where the crosslinking is initiated by a photochemical reaction rather than heat. This technology enables parts to be cured quickly and at low temperatures. It also allows silicone rubbers to be combined with many temperature-sensitive materials.

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Next-Gen UV

UV LED Matures

Wide format UV printing evolves to include the use of UV LED lamps to provide more efficient curing. In addition to energy savings, the low heat enables UV ink compatibility with a broader range of heat-sensitive substrate options.