Lime scale from water dripping through concrete

[Rainbow1616]

Just as I mentioned above. What product would I use to remove a white stain left on My hood from a crack in a ceiling of a parking garage where water leaked through?

 

I already tried Clay bars and various soaps and waxes, nothing worked so far.

 

Any help would be appreciated

 

Thanks

[TexWalker]

Vinegar or something acidic. Maybe try the wheel cleaner?

[ZMAN024]

Vinegar or something acidic. Maybe try the wheel cleaner?

If you do try the wheel cleaner, go with a 1:1 dilution and don't let it sit for too long. Rinse with plenty of water afterwards.

[Rainbow1616]

Thanks for the quick replies, I will try that when I get home!

[Chadley]

wrong place - sorry

Edited October 3, 2017 by Chadley

[Chonke]

+1 on the vinegar. Let it soak for a few minutes and that should soften up the stain for you  to wipe off or clay bar. 

[BrianT]

Vinegar, had the same thing happen to my Jeep.

[Dan@Adams]

If the suggestions above don't work, please include a picture or two of the stained area and we can continue troubleshooting from there! Thanks!

[BRZN]

My neighbor brought her sons car to me just a couple weekends ago, The guys wife had parked the car under a bridge in the Philly area. Stuff from the road above had dripped all over the roof and trunk lid. He took it through the drive through car wash which did nothing. It sure seemed to be lime scale.

 

I sprayed the affected area liberally with Detail Spray and rubbed, HARD, with Adam's Visco Elastic Clay using the included Geo Impression tool as a handle. With effort the stuff began to come off. I cracked a pretty good sweat, and got a nice triceps workout. The area would need polished now as there is quite a bit of marring, but the gunk is off.