How about applying some silicone spray on the seals? which also doubles to protect the rubber. Just exploring options. I do agree the best is still that PPF and it's very affordable.
It's the same that happens to a windshield, those wipers, along w/ some dust, creates those minor scratches. and glass is so much harder than paint.
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2018 BMW M2 LCI BM3 Stage 2 + MPE + FTP charge pipe + MST V2 Inlet + TurboSmart DV + CSF FMIC + AA Hi-flow Downpipe + Turner Rear Shifter Bushing + Wiechers Strut Brace + Bilstein B16 PSS10 + Apex VS-5RS
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