sealing a dusty floor that will be carpeted

[Bucks]

We have a new concrete floor that is very dusty, we are going to be laying underlay and a carpet on it.

Would a 1-5 mix of PVA be OK to seal it, or would I be better of using one of the proper sealers?
From what I remember from years back when I used a sealer on a garage floor, I had to wash the excess sealer away after leaving it for so long, which we cant realy do with this floor, hence wondering about PVA or would that maybe stick the underlay to the floor

 

[PrenticeBoyofDerry]

PVA or a floor sealant solution you can find them at most sheds and builders merchants.

 

[Bucks]

I already have a load of PVA, just wondering if it is suitable for sealing a concrete floor that is going to be carpeted.

 

[Blagard]

Well thinned PVA can be used, but as you are wondering I would expect a risk of it sticking to the underlay if your floor gets wet (leaks, spills etc).

For dust proofing a lift shaft I know a thinned coat of emulsion will do, but never really thought about it on the floor (no good for a wearing surface without carpet etc. over it)