The adhesive often called carpet mastic used under most glue down carpet is usually water soluble and tends to prevent thinset from properly adhering.
Thinset over carpet glue.
So i pulled up the old tile in my bedroom and it was installed over vinyl flooring.
Looking at a small tile job.
Then there s yet another variation of thin set for thick bed installations.
We are talking old school 1960 s thick vinyl floor 12 x 12 s and the ceramic floor stuck just fine but now there is black glue on the concrete and it is real thin but and is sticking very well to the con.
Thick accumulations powdery brittle or otherwise weak adhesive layers must be removed.
Don t worry it looks a lot worse than it is.
Xl brands triseal adhesive residue encapsulator triseal is a light colored high strength acrylic polymer compound formulated to isolate cutback and other types of old adhesive residues that would affect the bond of the new floor adhesive over concrete substrates.
Behaving much like cement or mortar this material creates a.
Thinset also provides structural support so that very minor adjustments in height can be made.
It must be easy to work with and it must adequately fill in gaps between the tile and the substrate.
Should the tile get wet the mastic may soften negatively affecting the bond of the tile to the substrate.
It s a slab and the original flooring circa 1960 s was vct.
But now that you have ripped up the old carpet you ve got a sticky situation.
The vct has already been pulled up but there is a residue of black glue.
Whether wall or floor tile that tile needs to thoroughly stick to its base surface demands placed on tile adhesive are both extensive and steep.
You can t tile over old carpet glue but it s not hard to remove carpet adhesive before tiling.
The following steps are recommended for resurfacing cutback adhesives and carpet glues with a self leveling concrete param 5500.
Prior to the installation of floor covering systems triseal will also seal floors in dusty conditions providing a clean.
This is used with large heavy or thick tiles.
Will thinset adhere to a vinyl floor.
Replacing carpet with tile can give your home an exciting new look.
There s also a medium bed thin set mortar which is a variation that s used for slightly larger applications.
Thinset mortar is often the adhesive of choice for installing ceramic porcelain or stone tiles.
It cannot cure too fast.
Before installing the self leveling concrete the installation contractor should ensure that the sub floor is properly prepared.