pva bond on top of the mdp primer and then lay the tiles?
I am tiling my bathroom floor....it is mdf - in error, i put down mdp primer instead of pva bond....can i put pva bond on top of the mdp primer and then lay the tiles?
Advice from 12 local tradespeople
MDF board is not perfect subfloor for tiles you should have plywood or cement board, don't use pva... Use Sbr Bond or Mapei primer.
No don’t use pva, sbr is best or a tiling primer and I wouldn’t tile on mdf to be honest, use cement board where possible
I would recommend ply not mfg it’s not the correct timber to use to tile on
It is wrong to put MDF in bathroom floor the best you should have put is ply on top of the ply should come a baker board or self leveling adhesive then tiles
No you cant use PVA as a primer for tiling
Hi, tilers do not use Pva to prep sub walls or floors an acrylic primer would be the best surface primer also I wouldn’t recommend tiling onto mdf as it swells if it gets wet and that will cause tiles to crack. The usual practice would be to use plywood or durabase matting on top of the mdf.
mdf board is not really good for bathroom you should have plywood on any backerboard or cement board suitable for tiles. But if you want to do on this board buy SBR bond on amazon paint it and after paint with membrane waterproof may this will work.
Yes but easier to spread layer of pva to underneath of each tile apply with either a sponge or paint brush
No….never PVA when tiling…..PVA is water soluble….once dry, as soon as you apply wet adhesive to the dry PVA, it re-softens and the tiles fall off….start again, then use Mapei Eco Prim Grip as your primer.
Sean
It's best not to apply PVA bond directly on top of MDP primer, as it may interfere with adhesion. MDP primer is typically used for moisture resistance, while PVA bond promotes better adhesion. If possible, remove the MDP primer, then apply the PVA bond to ensure a strong bond between the MDF and tiles. If removal is not an option, consult the product manufacturer to confirm compatibility or consider using a flexible adhesive that works with both surfaces.
No, never use PVA to prime a surface before applying tiles
Personally I would take up the MDF and lay a proper backer board
