You can put new thinset on top of old, but only if the old thinset is perfectly smooth and level. This is rarely the case once the old tiles have been removed. The best option to smooth out the old thinset and prepare it for new tiles is to grind it down.
Do you have to remove old tile adhesive before tiling?
Better To Remove. Unless you intend on building a false subfloor off of the flooring below – as one might in a carpeting installation, for example – your best bet is to remove all of the pre-existing glue and thin-set before laying down the glue you will be using for your tile.
Can you remove dried thinset?
Add a squirt of dish soap or a cup of granulated sugar to a bucket of warm water and then apply it to the areas where thinset is present. Use a sponge to gently scrub the thinset. You may start to notice the marks fading and the thinset coming away from the tiles already.
Do I have to remove thinset before laying laminate?
But, yes, you need a smooth surface to install the laminate flooring. Was there concrete backer underlayment under the tile? That should be removed, and the thinset will come with it. Otherwise, grinding it off may be the only way to achieve the smoothness you need.
Can you tile over old thinset?
You can put new thinset on top of old, but only if the old thinset is perfectly smooth and level. Use a floor grinder and pass it back and forth over the old thinset until it is perfectly smooth and level. You can now tile directly on top of it as if it were a new surface.
Will thinset stick to old adhesive?
Fortunately, most grout and mortar manufacturers make a thinset which will bond to “cut back” adhesive. Typically, the “cut back” should be scraped smooth so the tile is not sitting on ridges of adhesive – although it does not have to be absolutely flat.
How do you soften dried thinset?
First, get some regular dishwashing liquid soap in a bucket of warm water. Wet the entire area with the suds and let it sit for a few minutes. You want the thinset to soak up the soapy water and become as soft as possible. After a few minutes, scrub off as much of the thinset material as you can.
Will water soften thinset?
Chipping Thinset Away with a Putty Knife. Pour 0.39 gallons (1.5 L) of boiling water gently over the thinset. Within 40 to 60 minutes of water application, you should notice cracks starting to appear in your thinset. This decreases its integrity and makes it much easier to remove using a putty knife.
Does vinegar remove thinset?
Dampen the thinset area as you would with water, but use straight white vinegar. Vinegar is a light acid and works well for concrete-based materials when it comes to cleanup.
Can you install vinyl plank over thinset?
While thinset mortar could hold vinyl tile in place, it is not necessary. The cementlike consistency of thinset is important with heavy tiles such as ceramic and stone, but with vinyl, which is light and resilient, you can use different adhesives.
What tool removes thinset?
Angle Grinder with the Small EdgeRam® An angle grinder is one of the best thinset and tile removal tools around. If you happen to have an angle grinder on hand you have used before for concrete grinding, try pairing it up with the stiffest metal brush attachment you can find.
Should I remove tile before installing laminate flooring?
Both tile and laminate flooring planks can be installed over wood or concrete subfloors. Since you cannot lay laminate planks over tiles, though, you do have to remove the tiles from the subfloor before placing your laminate flooring, which leads to some additional prep work.