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Question on muriatic acid

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csmith
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Re: Question on muriatic acid

Postby csmith » Thu Jul 26, 2012 6:55 pm

be aware that the fumes will corrode metal surfaces, so keep it ventilated, preferably outdoors
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metzindustries
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Re: Question on muriatic acid

Postby metzindustries » Sat Aug 11, 2012 8:10 pm

Here it is 7 dollars for a gallon of 25% or about the cost of one American made flapper disc.

I just pour a little in a plastic tub about one inch and another inch of water. Using goggles, rubber gloves and apron.

45 minutes removes my mill scale, the dross takes much longer.

To stop the post acid rusting, I have a second tub with baking soda and water. I neutralize the acid, then wash with plenty of water.

Then I hit it with a flapper disc to remove that grey powder looking stuff. It will stay rust free for a couple weeks even here on the tropical island.

I also found that longer soaks make the corners rounded which is nice when doing lettering to give them more of a cast metal look.

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Re: Question on muriatic acid

Postby muzza » Sun Aug 12, 2012 1:44 am

metzindustries wrote:I just pour a little in a plastic tub about one inch and another inch of water.


Just a note, you should always add acid to water, never water to acid
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Re: Question on muriatic acid

Postby signsbyhansen » Fri Oct 26, 2012 10:36 am

There is no way that I could store this stuff outdoors. We live in -40C weather. Any suggestions for storing indoors?
Thanks in advance.

rottenleonard
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Re: Question on muriatic acid

Postby rottenleonard » Thu Nov 15, 2012 5:43 pm

So I have about 4 gallons of this stuff that seems pretty used up, it no longer effects the metal, and if i put a little baking soda into it it doesn't foam. I would add more acid but my resivour is full. what can i do with this? can it just go down the drain? or in the driveway? or would I be causing a ecological disaster?

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modelaratrod
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Re: Question on muriatic acid

Postby modelaratrod » Mon Sep 23, 2013 12:42 pm

Does anyone have a part # or brand of Muriatic acid? All I'm finding is "safer" than Muriatic acid, and the usually translates into doesn't work as well. lol

Thanks.
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kbenz
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Re: Question on muriatic acid

Postby kbenz » Mon Sep 30, 2013 9:03 pm

modelaratrod wrote:Does anyone have a part # or brand of Muriatic acid? All I'm finding is "safer" than Muriatic acid, and the usually translates into doesn't work as well. lol

Thanks.


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Re: Question on muriatic acid

Postby VPT » Wed Nov 30, 2016 8:52 am

Does white vinegar freeze? I live in WI and am trying to figure out what to do for cleaning parts.

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tnbndr
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Re: Question on muriatic acid

Postby tnbndr » Thu Dec 01, 2016 7:46 am

Does white vinegar freeze? I live in WI and am trying to figure out what to do for cleaning parts.

Put a bottle of it in your freezer and find out? My guess is that it will as it is mostly water!!
I keep mine in the basement.
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