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Can NiTi be Teflon™ or PTFE coated to enhance its lubricity?

April 26, 2017Coated enhance lubricity niti PTFE

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Can NiTi be Teflon™ or PTFE coated to enhance its lubricity?

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Spayed coatings of PTFE require a curing cycle at high temperatures (>300°C) that can affect the superelastic or shape memory characteristics of a NiTi component. Sprayed PTFE coating of guidewires are performed with the wire maintained in the straight condition and under slight tension. Heavy thicknesses of coating can be achieved. Vacuum or plasma deposition techniques are effective but will leave only a very thin layer of coating.