Paint-on tanking products for floors

[Mossop]

Is it correct that paint-on tanking products for a floor require more than one coat, with subsequent drying time between coats?

If that's the case, would I be correct in thinking that a waterproof matting product adhered to the floor timber before tiling is quicker to put in place?

Thanks.

 

[Rookery]

You should paint on the 2nd coat at right angles to the 1st so you haven't missed any areas. I find paint on much quicker and less fuss overall than matting and would usually use Ardex WPC which takes little time to dry.

 

[Flintstone]

over timber? What timber ?
Tilemaster make a one coat tanking paste. But most two coat systems don’t require a long time between coats anyway.

 

[Mossop]

over timber? What timber ?

18mm marine ply.

 

[Flintstone]

Is this a bathroom or wet room? If you have the height available, you would be best over boarding that ply with something like a 6mm insulation board. Know technically you can tile onto the ply but it’s not ideal imo

 

[Mossop]

Is this a bathroom or wet room?

It's a bathroom, so the floor would only receive some small amount of water.