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Jim Barrett

  • Posts: 15
Cleaning rust spots off of slabs
« on: August 25, 2021, 11:17:22 am »


I’ve been asked by a customer if I am able to remove these what appear to be rust spots from her slabs.

She said it was from weedkiller or grass seed apparently.

I’ve only been cleaning patios for 4 months and this is the first time I’ve come across this so any advice on product to use or method of cleaning would be greatly appreciated.

Thanks.
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Smudger

  • Posts: 13438
Re: Cleaning rust spots off of slabs
« Reply #1 on: August 25, 2021, 01:12:27 pm »
that would be correct they use an iron sulphur (or something) to feed the grass - ive had 4 like this, this year

Oxalic Acid is my goto rust remover - mix in hot water apply and scrub - wait 15 mins and re-apply rinse off.

usually works great on stuff like concrete slabs etc..

be aware it is time consuming

Darran
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Never argue with an idiot, they will only bring you down to their level, and beat you with experience

Jim Barrett

  • Posts: 15
Re: Cleaning rust spots off of slabs
« Reply #2 on: August 25, 2021, 02:32:19 pm »
Brilliant. Thank you Darran.
I bought some Oxalic Acid a while back actually, I’ll give it a try.
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the king

  • Posts: 1438
Re: Cleaning rust spots off of slabs
« Reply #3 on: August 28, 2021, 07:28:13 am »
Rust x pro is good stuff
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Kev Martin

  • Posts: 6954
Re: Cleaning rust spots off of slabs
« Reply #4 on: September 06, 2021, 08:48:06 am »
LTP Ferrex it’s brilliant
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