A freshly screeded floor should be sealed before tiles are fitted unless a screed has been used that does not need sealing priming this screed is usually dust free so it seems as yours would require sealing for tiling.
Do you have to seal concrete before tiling floor.
Use filler to fill in any dips and apply a floor leveler for any humps in the floor.
Before you even consider the priming of a wooden floor you need to be satisfied that the floor construction is suitable.
Sealing your basement floor before installing carpet is a good idea.
How to seal a concrete floor for tiling.
Before using the sealer ensure that it is mixed thoroughly.
Also ensure that the concrete is level.
Seal off the area with poly sheeting.
From my understanding the screed will not need sealing if you are only going to fit laminate or carpet.
After all cracks and uneven areas in the concrete can cause damage to the tile above and uncontrolled moisture in the concrete can destroy the mortar and loosen the tiles.
This is particularly imported when laying tile as the floor needs to be as level as possible.
If it tests positive follow these asbestos abatement procedures.
Installing carpet also helps to insulate the interior of a basement by keeping the floor warm in cold weather.
Use grout to fill in the cracks between the tiles.
Most floor tiles made from the 1920s to the 1960s contain asbestos and require special procedures for removal.
After laying all the tile over the surface of the concrete slab allow the tile to rest for 24 hours before finishing the tile.
Concrete contracts and expands at a different rate from the thinset mortar used to install tiles.
Cement on top of slab is solid and not flaky i dont worry about it i like the glue to be absorb into the slab but if u seal could not absorb u dammed if u dont and dammed if u do been tiling 29 years.
For instance an old concrete floor that was tiled previously will probably not need a primer as long as the surface is clean and free from old adhesive and anything else that was stuck to the floor.
Jul 5 2010 1.
Although you don t need to install an underlayment between the concrete and the tile you need to prepare the surface before placing the tile.
Apply the grout and wipe off the excess grout with a damp or wet sponge.
For that reason it is best to use an elastomeric crack.
Step 3 mix.