As you can imagine I have used loads of black trim cleaners, sealers, restorers to keep the matt black trims on the exterior looking good.
The wheel arch protectors are particularly prone to going milky or grey in sunlight or after wax washing.
Finally, I have found this from Autobrite; Autobrite Direct - Well Dressed - Trim & Tyre Gel Dressing
Goes on easily with an MF Cloth and seems to last ages.
Edit: Not faded after a month so far.
The wheel arch protectors are particularly prone to going milky or grey in sunlight or after wax washing.
Finally, I have found this from Autobrite; Autobrite Direct - Well Dressed - Trim & Tyre Gel Dressing
Goes on easily with an MF Cloth and seems to last ages.
Edit: Not faded after a month so far.
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