If I wanted something to keep the dust down as a temporary measure then I'd just PVA it and maybe use some old carpet as a posh stop-gap. It would cost next to nothing. If the eventual plan was to epoxy/polyurethane resin then you'd have to grind the floor anyway which would take up the PVA.
It's not too bad, and it is actually mainly used as a garage, i.e. somewhere to park the cars, so dust isn't a major issue, just would be nicer if it look better
If I wanted something to keep the dust down as a temporary measure then I'd just PVA it and maybe use some old carpet as a posh stop-gap. It would cost next to nothing. If the eventual plan was to epoxy/polyurethane resin then you'd have to grind the floor anyway which would take up the PVA.