Tiling and old concrete floor?
Answers:
You could deglaze it with liquid sand. But, if you use an adhesive like lock tight instead of thin set the tile won't come up and you'll have a firm hold without deglazing.
Other answers:
use a good wax stripper and clean the floor, then install your tile
use a good wax stripper and clean the floor, then install your tile
i would think nothing, it sounds like its already prepped for tiling, just make sure you use quality tile and tile glue stuff, dont know what its called.
Depends on the kind of tile you are laying.
You know what is cheaper? You can purchase a special paint for concrete floors and actually sponge a design onto the floor! Easy clean up without worry of buckling tile squares.....MUCH easier to maintain.
Just a thought because like I mentioned, I don't know what type of tile you are looking at.
Hi,
You may have to use a strong detergent to clean it then when it dries use an acid to etch it. I think a lot of the hardware stores no longer carry the Muratic Acid, which is very strong.
If you find some muratic acid be very care full with it. It will burn you and be sure to use plenty of moving air in the area. The fumes from it can burn the inside of your nose all the way down to your lungs. I have used it to clean dried mortar off bricks, it will dissolve concrete.
It has no effect on grease or oil so they must be cleaned of first with alkaline cleaners.
If no muratic acid then, most any of the acidic driveway cleaners in the hardware store should work fine. Might take a little longer.
When you go to tile, use the most expensive thinset you can find and buy an additive to go in it to make it stick better.
Bob
I agree with the floor stripper guy. Stip it down and use Flexibond flexible mortar to put the tile down. You don't need an additive with that. Just mix it in a pail and trowel it down with a 1/4x1/4 trowel. Mix it somewhat stiff so that the grooves you comb stay without drooping. If it is epoxy paint on the concrete then you can go right over top of it without worry. DON'T USE MURATIC ACID!