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Circe 04-06-2013 05:13 PM

Cleaning mortar from bricks
 
What is the best way to clean the mortar off my oven bricks

brickie in oz 04-06-2013 05:23 PM

Re: Cleaning mortar from bricks
 
Quote:

Originally Posted by Circe (Post 149711)
What is the best way to clean the mortar off my oven bricks

Inside or outside the oven?

Les 04-06-2013 05:24 PM

Re: Cleaning mortar from bricks
 
If it is fairly new mortar use a 50/50 solution of muratic acid and water. Wear gloves and eye protection. I use a brush and have the hose handy to rinse. Just occurred to me inside or out? The hose for rinsing may be an issue...

stonecutter 04-06-2013 05:37 PM

Re: Cleaning mortar from bricks
 
Inside you can use a wire wheel attachment for a drill or angle grinder. Use one made of brass.

EDIT: for dry cleaning brick inside the dome.

Circe 04-06-2013 06:58 PM

Re: Cleaning mortar from bricks
 
It's outside so I will give the acid a try thank you

brickie in oz 04-06-2013 07:25 PM

Re: Cleaning mortar from bricks
 
Quote:

Originally Posted by Les (Post 149714)
If it is fairly new mortar use a 50/50 solution of muratic acid and water.

I thought the ratio is 10% acid to water?

Tscarborough 04-06-2013 07:27 PM

Re: Cleaning mortar from bricks
 
10 to 15 parts water to 1 part acid unless you want to burn out your eyes, your lungs and the brick.

stonecutter 04-06-2013 07:29 PM

Re: Cleaning mortar from bricks
 
Quote:

Originally Posted by brickie in oz (Post 149723)
I thought the ratio is 10% acid to water?

It depends on the type of brick, but that is pretty close. But typical cleaning should be around 1:6 - 1:10.

stonecutter 04-06-2013 07:34 PM

Re: Cleaning mortar from bricks
 
Also you will need to pre-wet your brick before applying acid.

Tscarborough 04-06-2013 08:50 PM

Re: Cleaning mortar from bricks
 
F'ing around with muriatic is not something I recommend to anyone, it is a 30 percent solution of hydrochloric acid and is a serious industrial chemical. If you insist on using it, hose down the entire area until fully saturated, dilute to a reasonable mix (10 to 15 to one) by pouring the acid into the water and wear appropriate safety equipment.

There are available proprietary cleaners that are a little safer, Sure Klean 600 detergent is one, although it is still a dangerous product. If you are not able to keep from making a mess while laying your masonry, then you can use industrial strength vinegar to remove minor amounts of mortar.


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