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August 25, 2016
1 Min Read
PTFE-coated mandrels that offer defect-free performance during catheter welding and tipping operations are available from Applied Plastics Co. (Norwood, MA).
The mandrels undergo a proprietary surface preparation process and feature a PFOA-free coating that will not flake, peel, or crack. Providing a 0.5 dynamic coefficient of friction, these “highly durable” mandrels prevent the tubing from sticking and block shrinking, and allow more than 25% elongation to simplify catheter removal, the company said in its information.
Suited for catheter manufacturing, small-diameter extruded tubing and formed balloons, Applied Plastics’ PTFE-coated mandrels are chemically inert and can operate at 600° continuous. Offered in stainless steel or nitinol, they can be supplied precut in diameters ranging from 0.005 to 0.05 inches with a +/- 0.0003-in. tolerance, depending upon size.
About the Author(s)
Until she retired in September 2021, Clare Goldsberry reported on the plastics industry for more than 30 years. In addition to the 10,000+ articles she has written, by her own estimation, she is the author of several books, including The Business of Injection Molding: How to succeed as a custom molder and Purchasing Injection Molds: A buyers guide. Goldsberry is a member of the Plastics Pioneers Association. She reflected on her long career in "Time to Say Good-Bye."
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