#1  
Old 06-12-2011, 07:38 PM
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Default Muriatic Acid for cleaning dome interior

So my dome is a mess, I didn't realize how bad it was until I tried to remove some mortar from the dome sides today. I saw a video where someone used muriatic acid to basically dissolve mortar from the surface of the bricks of an outdoor fireplace. I'm wondering if the same can be done for cleaning the inside of the dome. Any thoughts here?
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Old 06-12-2011, 09:14 PM
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Default Re: Muriatic Acid for cleaning dome interior

My thoughts would be NO. First off the fumes would make it dangerous in such a confined space. and second how will you rinse the acid off without filling your oven up with lots of water. There are more reasons but that's my big two.
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Old 06-12-2011, 09:22 PM
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Thumbs up Re: Muriatic Acid for cleaning dome interior

!I'd say NO, unless you can get a politician to do it for you, they get face and neck peels all the time to look younger.

Use a four inch grinder with a masonry blade. Use eye protection and a respirator.
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Last edited by Lburou; 06-13-2011 at 04:36 PM.
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Old 06-13-2011, 12:28 AM
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Default Re: Muriatic Acid for cleaning dome interior

Once you fire the thing with a gooood fire the mortar will drop off.

Save the acid for the outside if need be.
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Last edited by brickie in oz; 06-13-2011 at 12:44 AM.
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Old 06-13-2011, 12:32 AM
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Default Re: Muriatic Acid for cleaning dome interior

I did it, with gloves, long sleeves. a mask, and safety glasses. Not something I would recommend fora any novice. Even fully protected, you will experience the acid in the mot unwanted places. Just be careful, wear protection, and DO NOT use it full strength, need to be cut with a minium of 50% water.

RT
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Old 06-13-2011, 12:42 AM
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Default Re: Muriatic Acid for cleaning dome interior

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Originally Posted by RTflorida View Post
and DO NOT use it full strength, need to be cut with a minium of 50% water.

RT
The max recommendation is 10% acid 90% water.
You are lucky you didnt get burnt....
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Old 06-13-2011, 04:16 PM
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Default Re: Muriatic Acid for cleaning dome interior

Hey, I never said I followed any recommendations. I go with fast, effective, and yes, a bit dangerous. Personally, I've found the weak solution to be no more effective than a stiff brush and plain water. Again, not something I recommend. I know this is your trade and you do this every day so safety is of the utmost importance, but you have to admit a 10% solution doesn't do s#@t for removing much of anything unless the residue is very fresh. If the solution doesn't bubble and fizz, then its not strong enough for me. I can't stress enough the lack of proper protection is harmful, not to mention highly corrosive to the surface it is applied to. I only leave it on for seconds before rinsing.

Realistically, now that I think of how I usually mix it, I'm probably in the 25-30% range.

Brickie, what is the acid solution that is readily available in OZ? The stuff sold at every store here is 31.45% hydrochloric acid.

RT
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Old 06-13-2011, 04:25 PM
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Default Re: Muriatic Acid for cleaning dome interior

Sorry guys! I just can imagine adding that much water to my oven. Then stick a hose in to rinse.
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Old 06-13-2011, 04:35 PM
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Default Re: Muriatic Acid for cleaning dome interior

Quote:
Originally Posted by RTflorida View Post
Hey, I never said I followed any recommendations.
RT - I used around 50/50. No messing around, took it off in a heatbeat. I didn't go in there with it to clean though. Come to think of it, I would go in there with plain water.
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Old 06-14-2011, 12:23 AM
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Default Re: Muriatic Acid for cleaning dome interior

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Originally Posted by RTflorida View Post

Brickie, what is the acid solution that is readily available in OZ? The stuff sold at every store here is 31.45% hydrochloric acid.

RT
They sell it as 33% here.

There was a bloke not long ago got cornered by the cops for some stupid offense, he drank 1 litre straight from the bottle in front of them, he was dead before he got to hospital.
Nasty was to go, it hurts enough if it splashes in your eyes.
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