True thinset over adhesive??
#1
02-23-14, 08:44 AM
True thinset over adhesive??
We are in the middle of redoing our bathroom (full bath with small shower stall). We had a wetbed laid and plan on using a marble mosiac on the shower floor and porcelain floor and ceramic subway tile everywhere else. We read on TOH that using a premixed thinset can save time. Since we only needed the special type for the marble in the shower, we thought we would use it here, but use traditional thinselt everywhere else. Well, we didn't read the package closely and DH used what it actually adhesive on all the joints on the shower floor (joining the wetbed to the wonder board walls) and the threshold joints. This is a very thin application but now we realize that we misread the bucket and we should have used true thin set given it is a shower floor, etc....
My question is what do we do now? We can't rip up the whole wetbed to remove the adhesive. Can we go over it with true thinset safely? Thanks in advance
My question is what do we do now? We can't rip up the whole wetbed to remove the adhesive. Can we go over it with true thinset safely? Thanks in advance
#2
02-23-14, 09:26 AM
Member
Pre-mixed mastic's are not designed for wet locations. While it may say suitible for walls, I would not use it at all. It breaks down in wet locations. I'm afraid you need to remove all and start over. Not quite following totally where it was used. You may be able to scrape away the top layers of the mudbed and get rid of it that way. Some floor muds are quite grainy and a stiff putty knife will allow you to scrape some of the surface down to correct for imperfections in the bed.
#3
03-02-14, 02:45 PM
"Pre-mixed mastic's are not designed for wet locations. While it may say suitible for walls, I would not use it at all. It breaks down in wet locations. I'm afraid you need to remove all and start over. Not quite following totally where it was used. You may be able to scrape away the top layers of the mudbed and get rid of it that way. Some floor muds are quite grainy and a stiff putty knife will allow you to scrape some of the surface down to correct for imperfections in the bed."
Thanks for your help!
Thanks for your help!
