Rapid-Flex Adhesive Grey Flexible Floor Tile Adhesive 20KG Bag Description: A fast setting cement based, thin or thick bed wall and floor tile adhesive. It is suitable for fixing ceramic, quarry, porcelain, vitrified, natural stone, travertine and mosaic tiles in internal locations. Conforms to EN 12004 Class C2F.Benefits: w Rapid setting, flexible and deformable. w Does not require admixtures. w Can be grouted after 2 hours. w Is suitable for ceramic, porcelain, vitrified, mosaic, marble and natural stone tiles. Uses Bond It RAPID-FLEX is a flexible, fast setting, thick or thin bed adhesive for bonding ceramic, quarry, porcelain, vitrified, natural stone, travertine and mosaic tiles to walls and floors. Because of the.