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Published: February 20, 2013
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NuSil Launches Medical Material that Resists Swelling


NuSil has introduced a new medical material for liquid injection moulding equipment. The company exhibited the new fluorosilicone elastomer MED-5440 at 2013 Medical Design & Manufacturing West Conference, which took place in Anaheim, CA, USA, last week. MED-5440 is a two-part silicone rubber with a 1:1 mix ratio and a Type A durometer of 40. The medical material cures rapidly when exposed to heat.

MED-5440 resists swelling when coming into contact with dimethyl fluids, solvents or oils. It is suitable for devices used in environments where swelling is a concern. Some applications for this medical material are O-rings, gaskets, seals and precision-moulded parts for implants.

"I don't think there are a lot of fluorosilicones on the market. It's kind of a unique product," says Brian Reilly, Marketing and Sales Director, Medical Implants, at NuSil. "In certain environment, when the silicone may come into contact with alcohol solvents or certain chemicals, I think it's a great option."

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