PVA as a plywood sealant.

Question

Is it ok to seal the plywood boards on bathroom floor with PVA prior to tiling ?

Jake · Accepted Answer

Yes you can do this however I would advise that you put concrete boards down instead.

Carl · Answer

Hi.

Yes either PVA or SBR is appropriate for sealing plywood before tiling.

Hope this helps.

Daniel · Answer

Hi Sam,

I would personally use a primer, if you type it into google loads will come up. Mapei primer is the one I use and always works well, it’s £26 from B&Q. Just read the instructions and use a roller as normal.

PVA doesn’t ensure all the qualities primer does, like full waterproofness, and mould and moisture resistant.

This is one on the tick list that will turn your install from a DIY job to a professional outcome.

Danny

Jag · Answer

Hi Sam, if you are looking to tile on the bathroom floor you would need to begin the process by fixing concrete boards with adhesive and screws to the existing floor boards, you will then need to let that dry, settle and stick prior to tiling,

Chris · Answer

Hi Sam I would recommend using a mapai primmer that’s what wee use or use tile backer board instead of plywood and there not primer required then

David · Answer

Better using backer boards instead of plywood, if using ply, PVA is a no no better to use a proper primer that soaks into the wood

Grzegorz · Answer

Hello. PVA is a water based adhesive, so it will have a limited life outside. Overall a plywood requires the application of a latex based bonding product to seal it.

Marius · Answer

Yes,its recommended as it removes the dust and creates a better bonding of the tile adhesive. I recommend to spread adhesive on the back of tiles very tin before laying.

Zoltan · Answer

Yes, two layers!......       ..................   ....................

Lee · Answer

I wouldn't recommend ova or using plywood I personally use no more ply then a grip and prime usually from andrews or almurads

PVA as a plywood sealant.

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