Vehicle Battery Stain on Concrete

[Saitch]

A well meaning person cleaned both crank & fridge batteries, with Bicarb & warm water, which has resulted in a rather large, brown stain on the concrete floor of the shed.
I've tried degreaser on it without much success. Can I try bleach or will it deface the concrete as well?


Steve

[Don 130]

experiment with a few drops on the edge. See how ya go. Muriatic/hydrochloric acid might also work.
Don.

[d2dave]

I have found White King good for cleaning concrete. Not sure about acid stains though.

[101 Ron]

Brown battery acid stains on concrete tend to be permanent.
If on outdoor concrete it will take a few years for the stain to weather away.

[Saitch]

Brown battery acid stains on concrete tend to be permanent.
If on outdoor concrete it will take a few years for the stain to weather away.
Thanks for the info, Ron..............................I think:D




I'll give the White King a go too.
Steve

[Tombie]

Time to etch and seal :cool:

[Saitch]

Time to etch and seal :cool:
Oooh Work!!


I'm starting to like the abstract effect:D
Steve

[J RAD]

Have you tried CLR yet?

[Saitch]

Have you tried CLR yet?
Never heard of it but my friend Google tells me it might be worth a shot!
Thanks J RAD
Steve

[d2dave]

I'd also try the White King. Very cheap to buy so nothing to lose.

[incisor]

i also reckon CLR will have a good chance of sorting it...

[Redback]

Gerni and bleach, personally I'd leave it, it's a garage, not a lounge room:p

Baz.

[J RAD]

Never heard of it but my friend Google tells me it might be worth a shot!
Thanks J RAD
Steve

Let us know how it goes. I've used it on lots of stuff but am interested to see how it goes with your issue.

[mrapocalypse]

Oxalic Acid. Get it from Whitworths. It's a stronger but not extreme acid.