Applied Plastics Co. has introduced a service that strips worn Parylene and Teflon coatings from fuse-welding and tipping mandrels and applies a PTFE Natural fluoropolymer coating formulated to enhance their bonding surface and prevent flaking and cracking. This PTFE coating creates a smooth, anti-stick surface that can withstand continuous heat as high as 300°C with excursions to 371°C.
According to the company, PTFE Natural-coated forming mandrels provide a 0.05 coefficient of friction per ASTM-1894 to simplify catheter removal in fuse welding and tipping operations. Suitable for mandrels with diameters of 0.020" and larger, this stripping and recoating can enable users to recondition rather than discard worn mandrels, saving delivery time and eliminating grinding.
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