There's piping and piping. The basic MMC is the black "vinyl", and I suspect this type may be vulnerable to ACF50.
The second type is "wrapped" & "coloured". The wrapping looks like leather and is obviously bigger diameter. This type will be more resistant to ACF50. In fact I've used it a couple of times with no ill effects. Although I suppose heavy rain dilutes the risk.
My Roadster is wrapped red, and looks good. When I ordered my yellow Plus 4, I would have liked yellow wrap, but was advised by my dealer that MMC would use the "closest" to yellow, which might end up being beige.
I asked for wrapped black, but MMC informed me that black wrapped wasn't a colour, and so wasn't available. Anyway, after a bit of verbal sparring, I got my wrapped black. That was eight years ago. But don't tell anybody.
