Update on efflorescence on slate

Michael Ellis

Member
Joined
Oct 8, 2006
Messages
106
Well, I acquired and applied the F9 and it works better than Proschoice acid but the final results suck. 1. I either need more dwell time, but I left a puddle on one tile and it did not work. I am going to throw in the towel, except! 2. I think the thin-set is the culprit. How to cope with that is an unknown. Look at the images and tell me what you think. 3. Straight muriatic acid??

efflorescence2.jpg tile thin-set.jpg thinset.jpg
 
Last edited:

Michael Ellis

Member
Joined
Oct 8, 2006
Messages
106
I told the customer I was going to apply straight muriatic acid. If that fails, I give up. I cannot believe an acid cannot erase this shit...unless it's the thin-set with adhesives engineered into it. Does anyone have any insight?
 

Mikey P

Administrator
Joined
Oct 6, 2006
Messages
99,710
Location
The High Chapperal
I told the customer I was going to apply straight muriatic acid. If that fails, I give up. I cannot believe an acid cannot erase this shit...unless it's the thin-set with adhesives engineered into it. Does anyone have any insight?
I hate to say it, but....


You're only going to make it worse, water creates the efflorescence, acidic or otherwise.
 

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