Still trying to make a decision on re-painting old brick house. I cleaned a 4' x 4' section, appears to be ac ombination of efflourescence and old primer causing the paint to come off. There also is some evidence of the mortar softening in places. So, I scrubbed the area with TSP, rinsed, then cleaned with 10 % muratic acid, rinsed. I allowed it to dry. I also did the same to a brick I found in the basement. I then applied the Dry-Lok Extreme to this area as well as the face of the brick. I broke the brick afte curing and you can see evidnece of the Dry-Lok absorbing into the brick pores. So, now I have a question for anyone who might have used this stuff. If it does absorb into the brick pores and it also seems to have hardened the soft mortar somewhat, will this cause problems down the road if the efflorescence comes back and possibly would force the face of the brick to de-laminate? I've got a 36 foot by 56 foot wall to treat, and want to make sure it is going to work well before doing anything more. Any suggestions or observations will be appreciated.
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