T&B black ties are the best for longevity. I would use PL glue. You don't want the inductor to move in relationship to the PC board. Any movement leads to cracked solder joints.Colour does not make difference here. Cheap zip ties are brittle where professional ones last. In my company we use white pro quality zip ties in electronics we manufacture and they will stand over time where black consumer level black zip ties broke easily even when new.
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