DUNLOP TRADE RESAFLEX RAPIDSET is a high quality, fast setting rubber modified adhesive that is suitable for grouting after just 3 hours. DUNLOP TRADE RESAFLEX RAPIDSET is suitable for ceramic wall and floor tiles in indoor and outdoor (with satisfactory drainage) situations. It can be used over render, plasterboard, fibre-cement sheets, painted surfaces, existing tiles (indoors) and concrete in situations where minimal movement is anticipated.