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Repairing chrome exhaust pipe turned brown by cleaning fluid

I recently took my bike to get fixed and for some reason the mechanic decided to clean the exhaust pipe with a cleaning liquid not allowed on chrome. Now the chrome has a dirty brown tinge! How do I get rid of it?

Boipelo Molwela
Hobbyist - Johannesburg, Gauteng,South Africa
April 29, 2009

Hi, Boipelo. You haven't told us what the cleaning fluid was, and we have no pictures of the damage, so we can only speculate :-)

But whatever the fluid and whatever the damage, it sounds highly unlikely that any repair is possible short of replating. Good luck.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
April 30, 2009

According to one expired USA patent you ca use next solution:80 gr Thiourea ⇦ on eBay or Amazon [affil link] /20 gr nitric acid/1 lit water. Any proprietary chrome cleaner can be used too.Hope it helps and good luck!

Goran Budija
- Cerovski vrh Croatia
May 8, 2009

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