Chemical for cleaning bricks?

[Rickard Dwiggery]

I have a bit of a messy re-pointing thing happening and a lot of my bricks now look a bit discoloured due to waste cement splashing them. Wire brush has not removed all traces, so I want to know if there is a good chemical I can wash the bricks with?

Any advice appreciated.

Thanks

Rick

[Andy Hall]

Brick acid from a builder's merchants

.andy

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[Rickard Dwiggery]

Thanks Andy, I'll have a look.

Rick

[Andy Hall]

Obviously be careful. It is somewhat concentrated hydrochloric acid and will dissolve certain types of stone etc.

Have a bucket of water on hand and wear appropriate protection. The acid will tend to attack cotton clothing as well.

.andy

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[BillV]

Too true, I guy I know got some in his eye ..... called for his mother and he was 36!