Specially developed for tiling ceramic or quarry tiles directly onto interior concrete or screed floors Not suitable for wooden floors. For tiling onto wooden floors use Wickes Flexible Ceramic Floor Tile Adhesive & Grout (235-316) Allow a minimum of 24 hours under normal conditions for adhesive to dry before grouting In cold or humid conditions, drying times will be greatly extended. Please avoid using concentrated PVA as this will also greatly increase the drying time Ready mixed for interior use Waterproof