Messy Mortar Job Clean Up


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Old 06-21-05, 07:26 PM
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Messy Mortar Job Clean Up

I tackled removing & remortaring some bricks. Is there a product that I can buy to clean the mortar off the bricks? I went to Lowes, but no luck.
 
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Old 06-21-05, 07:59 PM
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You might start with water through a high pressure nozzle.
 
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Old 06-24-05, 04:58 PM
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Ask for muratic acid. It works well on new mortar but I've never tried it on old mortar.
 
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Old 06-24-05, 09:03 PM
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Muriatic Acid

The mortar is 1-2 wks old. How would I apply the muriatic acid, w/ an old paint brush? Can it damage the bricks?
 
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Old 06-25-05, 04:32 AM
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The bottle will have some directions for diluting. Start with the weakest concentration that will get the job done, but the older the mortar the stronger the acid will need to be. You can use a brush or pump up pressure sprayer (like you use for weed killer) to get the acid on the wall. You will see the mortar start to "fizz". After a bit, and before it dries scrub with a wire brush and then hose it off.

Mortar is alkali (base) and the acid is acid so they will tend to neutralize each other. I have never seen the acid hurt bricks, but keep a hose handy to wash it off in case it starts doing something you don't like.
 
 

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