How do you make these shine again?

[CrazySX]

My TTE exhausts have some sort of faded milky look to them.

They started like this


I then sprayed some surfex HD on them, let them soak and then gave them a good scrub with a scourer.

After that I tried polishing with that metal Polish that I forgot the name of.. oh it's come to me.. autosol lol!

Ended up with this :/




Any ideas???

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[Ardent]

Was going to say autosol, but....

[Tomo70]

Personally I use autosil or brasso, however it does like the tip has acid damage ? Is the surface damaged? I have even used T cut and got a satisfactory finish.

[CrazySX]

They are still smooth to the touch. I will be gutted if they are buggered. They were dirty when I bought the car but polished up ok then

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[CrazySX]

Oh and the first pic was with no flash. The other two are with a flash so look worse than they are.

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[CrazySX]

Oh and are they mild steel with chrome plated or solid stainless?

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[shnazzle]

Mild steel. It looks like it had some alloy cleaner used on them which etched the chrome.
I sincerely hope not.
Autosol is decently aggressive but you could try a cutting compound like G3 paste (yellow tube from car shop, not Halfords) and give it a good once-over.
Or a very high grit wet sandpaper and then Autosol to get the shine back

[CrazySX]

So is it a chrome plating? I would hazard a guess the hand car wash guys may have got some sort of cleaner on them, although they never wash my exhausts anyway :/

Will try the buffing method with a machine I think. Maybe my little rotary tool and LOTS of patience lol

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[Jay67]

Britemax is what I use,  m https://goo.gl/hbUE7q m

[Bossworld]

Autosol and finegrade 0000 wire wool

 m http://www.screwfix.com/p/liberon-steel ... 0wodsLkEEw m