Use contact cement to reapply the laminate so that it firmly sticks to the mdf.
Tiling a kitchen countertop over laminate.
This project involves laying ceramic tile over a laminate countertop around a top mounted kitchen sink and on.
Use a trowel to create beads all through the adhesive.
When we had our old tile countertop torn out in the kitchen we saw that someone had laid the tile over a previous layer of tile.
If the countertop is delaminating in areas the tile will not hold.
Luckily layering laminate makes very little difference in height.
To make things worse there was about a half inch mud bed under the top layer.
Begin placing the tile from the center of the counter out pressing back and forth and side to side on each tile to secure the thinset.
You do not want to simply apply the thin set every where and start laying the tile after.
Then butter the back of the tile.
Do this in sections.
While the point of installing tile over laminate is to cover up the poor laminate there is a limit as to how bad that laminate can be.
Tiling apply the base layer of the mortar on the ditra in a v or w pattern.
Mix the thinset in a large bucket and spread it about 1 8 inch thick over the entire laminate surface.