flooring question

[mj]

I'm in the process of repairing my utility room floor prior to recarpeting next week

I've laid a thin screed (10 - 25mm) in areas where the old damaged floor has been brought up when I lifted the ceramic tiles & plan to finish off with some floor leveling compound.

The screed was put down 2-3 days ago after sealing & priming the floor with a solution of diluted PVA. The surface of the new screed seems to be slightly powdery ~ is this normal or have I messed up the mix (I put a dollop of FEB PVA into the screed also.

Should I use some concrete hardner/sealer before the leveling compound?

When do you think it will have dried sufficiently to put the leveling compound down?

TIA Mike

[stuart noble]

I'd give it a soaking with 4 water: 1 PVA and allow to dry before the levelling.

[mj]

Cheers Stuart ~ Will give it a go

I owe you one

ATB Mike

[The Natural Philosopher]

I'll second that. PVA is essential before levelling to both toughen the surface and stop rapid water absorption from levelling compound, which buggers up its flow and setting characteristics.

I have also found that pouring huge quantities if thickish PVA down screed cracks eventually binds them back together immovably.

Useful stuff, PVA.