Effloresence on brick

[alazo1]

I started today cleaning some slate and brick.

On the entrance there is one potted plant on either side that has a build up of effloresence. I used an acid twice and still it's not all comming out. We're going back tomorrow to do more stuff and wonder if there's anything else I should try.

I got this acid from HD for $1 a gallon some months ago but I assure you it's as good as other types for tile cleaning. Should I go full strenght?. I can also pick up some muratic acid and see if that works. There are just 2 small areas probably 15 sft combined so I can be careful if someone can give me some tips on using the muratic. This is for brick.

thanks,
Albert

 

[sweendogg]

make sure its not an ahesive or latex migration first. Secondly. Keep with the acid product and go full strength... try stonetech's restore.. or I belive MB has a product that is said to work dynamite on effloresence and even prevent etching.

 

[RickL]

If in fact it is efflorescence on the brick. I used Muratic Acid on the outdoor steps to a house I owned 10 years ago and it worked great simply sprayed on waited a while brushed a little and rinsed off. Gone for good (or at least as long as I owned the house). However it's nasty stuff and I wouldn't try it inside or close to other materials and I personally would only use it one the brick definitely not on the slate! Glove up and stay away from the fumes if you got a respirator ,wear it.

 

[tim]

Sweeney, as usual, is right on. Restore is the best acid cleaner I have ever used, by far! I had a quarry tile with a terrible efflourence problem. I used everything but the kitchen sink, finally used Restore. Took care of it, sealed it with a special sealer to prevent future problems, cant remember that products name