Posted by: Jeff on November 11, 1999 at 00:01:10:

In Reply to: mortar removal & acid strength (from old bricks) Posted by: BJ on November 10, 1999 at 23:46:39:

: Hello,

: We have some bricks from an old building. It was
: taken down 12 years ago. Cleaning bricks has been
: difficult. We have tried scraping, while effective, it is very time consuming. We were told
: about muratic acid and used 1 part acid and 10
: parts water. It did not work like we anticipated.
: How strong of a solution? Are there any other options?

BJ
Muratic acid will breakdown the portland cement the problem is it is a chemical reaction and the amount of acid to clean more then a film of mortar would be more then I would like to deal with. Chipping and scraping work the best sorry.
Jeff

Followups::

• Re: mortar removal & acid strength (from old bricks) paul fischer 10:19:07 8/09/2002 (0)

: : Hello, : : We have some bricks from an old building. It was : : taken down 12 years ago. Cleaning bricks has been : : difficult. We have tried scraping, while effective, it is very time consuming. We were told : : about muratic acid and used 1 part acid and 10 : : parts water. It did not work like we anticipated. : : How strong of a solution? Are there any other options? : BJ : Muratic acid will breakdown the portland cement the problem is it is a chemical reaction and the amount of acid to clean more then a film of mortar would be more then I would like to deal with. Chipping and scraping work the best sorry. : Jeff

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