What's the quickest way to produce solid ground beneath your feet? Grind and vacuum off the substrate and pretreat it with R 777 Dispersion Primer or R 766 Multi-Purpose Primer. Bond the wood flooring with high-strength P 625 2C PUR Adhesive. Required time: max. 2-3 days, from substrate preparation to bonding, until ready for foot traffic in a medium-sized building.