Novice tiler seeking help - Tile Advice

[Gavin Porter]

hi thanks in advance for any advice. I have tiled two bathrooms before with good results, but both were re skimmed first. I am doing a third, when I knocked the old tiles off most of the skim came off. I had a quote from a plaster for 250 to plaster over, but he suggested I would only need a bonding coat? So to save money I have done it myself with thistle bonding coat. But reading many reviews it appears tiling over this in a bathroom would be a bad idea??

 

[Andy Allen]

Can't tile to bonding it will need a skim coat.......and take in to consideration the weight limits tiling onto skimmed plaster don't exceed 20kg per m2 including the adhesive and grout.

 

[Gavin Porter]

Can't tile to bonding it will need a skim coat.......and take in to consideration the weight limits tiling onto skimmed plaster don't exceed 20kg per m2 including the adhesive and grout.

Thanks Andy thought so, the bonding coat had been on for 4 days now, do i need to apply anything to it before skimmimg?

 

[Andy Allen]

PVA the bonding then skim.
use acrylic primer on the skim coat before tiling.

 

[Gavin Porter]

PVA the bonding then skim.
use acrylic primer on the skim coat before tiling.

Worse case if I tiled on bonding? Could I not apply some primer, time sensitive !

 

[Andy Allen]

Bonding has no strength to support the tiles.....not worth the risk imo..

 

[Time's Ran Out]

Is this a DIY project.

 

[On one]

As the Bonding plaster has had 4 days of drying you will have to apply numerous coats of diluted PVA, to prevent the Bonding plaster sacking all the moisture out of the finish plaster

 

[Blunt Tool]

If time sensitive why not overboard with insulation boards (Wedi, Marmox etc) adhesive and mechanical fixings, that way tile right away, you can do that yourself.

 

[Gavin Porter]

Is this a DIY project.

Yes diy project my house very little knowledge of plastering, not sure I would get an even finish with skim myself