This cement-based adhesive has great elasticity, which is perfect for all mosaics that are to be fixed to wood in exterior locations. It is supplied in plastic containers which contain approx 830gm which gives a coverage of approx 1/2 metre square or 5 ft. The powder is mixed with cold water in a ratio of 3:1 powder to water. It has a useable life in the pot of approx 40mins. Once the adhesive is applied to the fixing surface the tiles should be put into place within 10-15mins.