Rust Stain on STONE

[Carl JebbsParticipant @carljebbs45381]

Give me a suggestions on how remove this stain..

[Malcolm BannisterParticipant @malcolmbannister38996]

Try something like Kilrok kettle descaler from Aldi. It's formic acid based. Try it on a small area first and DON'T use it on marble or limestone.

Hope this helps.

[Capstan SpeakingParticipant @capstanspeaking95294]

Builders' brick acid will do it.

[MuzzerParticipant @muzzer]

Posted by Capstan Speaking on 16/05/2015 13:18:49:

Builders' brick acid will do it.

…which is hydrochloric acid, I believe. Or "muriatic" acid as the Mercans like to call it.

Dunno if it works on rust or not myself.

[Brian WoodParticipant @brianwood45127]

Oxalc acid is the correct material, available in small packs of 1/2 kilogram at sensible prices from various outlets on Ebay.

Usual precautions apply as it is poisonous if ingested. Present in rubarb leaves for example, not to recommended as part of your 5-a-day!

Mix in water and apply, bad staining will need retreating

Brian.

[Capstan SpeakingParticipant @capstanspeaking95294]

Posted by Muzzer on 16/05/2015 13:32:39:

Posted by Capstan Speaking on 16/05/2015 13:18:49:

Builders' brick acid will do it.

…which is hydrochloric acid, I believe. Or "muriatic" acid as the Mercans like to call it.

Dunno if it works on rust or not myself.

Yeah, I had an old Sky dish rot onto concrete. You couldn't tell afterwards.

[Neil WyattModerator @neilwyatt]

Can anyone see the original question?

I can't and I can't see why…

Neil

[Capstan SpeakingParticipant @capstanspeaking95294]

It's in the sub title. The chap's a forum noob. He's ok, it's not like we're Linux geeks

[JasonBModerator @jasonb]

No, I noticed that earlier, its an older thread as its numbered about 85,000 and we are now on 107,000?

Edited By JasonB on 16/05/2015 20:52:41

[JasonBModerator @jasonb]

Dates from June 2013, guy who posted started this and one other thread, think he may have been a spammer. Looks like the post was deleted but not the thread. For some reason Malcolm has decided to answer it anyway

Carl Jebbs if you want to look it up Neil

 

Edited By JasonB on 16/05/2015 20:54:55

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