Extrusion Mandrel Features Biocompatible PTFE Coating


An extrusion mandrel for manufacturing and forming catheter tubing that provides a smooth, slippery surface to permit faster production is available from Applied Plastics Co., Inc. of Norwood, Massachusetts.

Applied Plastics’ PTFE Natural® Extrusion Mandrel is biocompatible and features a 0.5 dynamic coefficient of friction to provide a smooth, slippery surface which permits faster production. Designed for extruding small diameter catheter tubing, this silver plated copper wire with the PTFE Natural® coating is supplied in continuous lengths on spools.

Allowing over 25% elongation without flaking and failure, Applied Plastics’ PTFE Natural® Extrusion Mandrel is available in .010” to .080” dia. sizes with ±.0003” tolerance, depending upon size. This precision, anti-stick extrusion and forming mandrel is chemically inert and capable of withstanding up to 315°C (600°F) service.

Applied Plastics’ PTFE Natural® Extrusion Mandrel is priced according to size and quantity. Samples and price quotations are available upon request.

For more information contact:
Applied Plastics LLC
25 Endicott St. / P.O. Box 128
Norwood, MA 02062 USA
(781) 762-1881
[email protected]

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Superior medical devices require superior coatings.

Our proprietary PTFE Natural® coated mandrels offer unmatched benefits.


Low Coefficient of Friction

PTFE Natural® coatings provide a coefficient of friction generally in the range of 0.05 to 0.20, depending on the load and sliding speed.



PTFE Natural® coatings can operate continuously at temperatures up to 550°F and can be used for intermittent service up to 600°F with adequate ventilation.



Non-Stick Very few solid substances will permanently adhere to a PTFE Natural® coating. While tacky materials may show some adhesion, almost all substances release easily.



Chemical environments usually do not affect a PTFE Natural® coating. Only molten alkali metals and highly reactive fluorinating agents are known to affect this coating.



The proprietary PTFE Natural™ coating process enhances the substrate bonding surface to provide optimum lubricity without flaking or cracking.



Since PTFE Natural® finishes are both hydrophobic and oleophobic, cleanup is easier and more thorough.