Peel and stick tiles on plywood floor

[donaldafm]

A friend of mine is helping me lay peel and stick tiles on a bathroom floor where we've laid down a sheet of multiply plywood. It was recommended by flooring people that we put down a layer of clear thin spread so that the adhesive in the tiles won't dry out.

My question is, is it a good or bad idea to first treat the plywood with a coat of Thompson's Water Seal before the clear thin spread. From a waterproofing point of view it's smart, but will it work with the clear thin spread?

Thanks,

Donald

[Tom R]

IMO, - - you'd be 'causing' a problem, - - if you fill the pores with water sealer, - - taking away the 'cling-factor' of the tile mastic.