ply floor

[arthurdaley]

Morning,
i should do a search for this but lm literally flying out the door.

Just taken up a chipboard floor and replaced with plywood, the intention is to tile the floor, what primer do you guys use?? also there is a stack pipe in the corner of the room that is also boxed in plywood, again which primer do you guys use? BAL ady being used.
regards. Duggie

[diamondtiling]

Hi Duggie, check on the bag mate, different companies advise to prime or not. The ply should have been bonded on the reverse and edges to stop it from cupping.

[Alan.P]

Yep, same as Diamond, the underside and sides should have been primed with an SBR and the tiled face would be dependant on adhesive and instructions.

[doug boardley]

as both above have posted, also what ply have you used, thickness, grade etc? for the soil stack I'd be tempted to face it with plasterboard if you still have room to do this. Good luck

[arthurdaley]

Thanks for the replies, the bathroom is probably in total 6ft by 8ft, the ply used is WBP 18mm, floor is quite solid no bounce or movement at all, would like to have used 25mm but this would create more problems than it solved.
Thanks again.
Dug

[grumpygrouter]

BAL adhesives say not to prime the tiling face of ply.