[Torqueman]

Hi, I have a couple of stubborn marks on the grill surround which is in cirium grey. Anyone tried T Cut on this or any other suggestions? Thanks

[Beemer5to3]

What kind of marks? The most likely culprit is mineral deposits from water drying, in which case a water spot remover will be your best bet. A polish is safe to use on cerium trim though for reference.

[225]

Maybe some form of corrosion as I've never had any stain bad enough for t cut on the cerium grille? It's only plastic so I'd be careful with t cut!

[The_Tok'Ra]

Yeah, Autoglym Super Resin is as far as I would go, only very slightly abrasive.

[Torqueman]

Thanks for the comments. I should have said- car has been in garage and think mechanic has either put greasy hands on it or rubbed something on it - hard to tell what it is. I will try some mild cleaners. I have autoglym super resin so may try that.

[bmnut]

Originally Posted by Torqueman

Thanks for the comments. I should have said- car has been in garage and think mechanic has either put greasy hands on it or rubbed something on it - hard to tell what it is. I will try some mild cleaners. I have autoglym super resin so may try that.

Is your paintwork GTechniq coatings like your wheels?

[Torqueman]

No, no coating on paintwork, just the wheels. Thinking of ceramic for paintwork soon.

[bmnut]

If you're considering ceramic for the paintwork soon then, just a suggestion, but maybe wait until then and have your chosen detailer sort those marks out for you prior to applying the coating?
When the guy I used did mine when the car was less than a month old he meticulously did a paintwork check and preparation before applying the GTechniq serum ultra coating. Even he had to do some light machine polishing of the factory finish to get it to a stage which he was happy with before applying the coating.