WACKER has planned to launch SILPURAN 6610/40, liquid silicone rubber for medical devices at COMPAMED 2011. The new material is ideal for production of biocompatible, radiation-sterilizable silicone valves without using additional auxiliaries.
The new liquid silicone rubber eliminates the need for a release agent and makes it possible to manufacture silicone valves in a rapid, clean and cost-effective manner. The material also minimizes the contamination risk linked with the release agent during the production or installation of valves.
SILPURAN 6610/40,atwo-component product is highly durable and produces a non-healing effect. It enables the silicone valve membrane to be slit before post-curing. The silicone valve slits can be produced with a mold during injection molding or with a punching die followed by demolding. SILPURAN silicone products are free from organic plasticizers, can be readily sterilized and are resistant to radiation.
Sterilization of the valves made from WACKER’s new silicone rubber can be done using ionizing radiation before shipping without loss of dosing accuracies. Thus, insulin pumps, needle-free infusion systems and other medical devices that use silicone valves provide high safety for patients. USP Class VI and ISO 10993 tests prove that SILPURAN 6610/40 is biocompatible. The material is packaged or dispensed in cleanrooms to eliminate contamination by airborne pollutants.
Source: http://www.wacker.com/