Mapei - Crack and Sound Isolation Mat

That is a very tricky install.

I would think you could use the Mapei peel and stick Sound and Crack Isolation product but call them the check first.

http://www.mapei.com/

Here is the Data Sheet for the Crack and Sound Isolation Mat

I would remove as much of the oil as possible first. Good Luck.

 

Scarify. It ends the worry of surface contaminants. No offense to John, but if the whole point of using a membrane is because of a bond breaker - how do you know the membrane will bond??

 

muratic acid thats what i would use to be on the safe side if an oily residue is present after that tile installation would not be an option.

 

I've only ever used muriatic acid for cleaning masonry outside. Seems like pretty nasty stuff to try and use indoors.

If the residue is still there after cleaning what would the options for coverings be?

 

x2 Scarify but not acid.

 

how about alittle wd40? that stuff cleans everything:thumbsup:

 

While I appreciate your zeal to sell stuff...That is hardly a simpler solution than renting a machine and cleaning the slab. Let alone the cost involved in buying the miracle subfloor and then the additional labor of installing it. I'm sure there are situations that Tyroc may be the simple solution. This ain't one of 'em :no:

 

I would go with the dawn or a good degreaser then put a fan on it. After it drys pour a few drops of water to see it is beading up like a waxed car. If it is then scarify it.

 

Another for scarifying. When doing epoxy floors it would be the same surface prep. Necessary to remove surface contaminates, and get a nice profile for proper adhesion.

 

I bet that WD-40 "penetrate" went deeper than a scarifyer can go.

 

Why not try some oil dry of kitty litter ground in on the spot (really ground in) and let it set for a few days?