Ressi TA 230 Grey Ressi TA 230 Grey is an extremely versatile tile adhesive based on a grey cement binder for the internal and external applications, swimming pools, basements etc. Ressi TA 230 Grey is highly suitable for the bonding of most types of tiles. Ressi TA 230 Grey is highly suitable for the application of porcelain, marble, granite, ceramic, glass tiles and many other different types of tiles in dry and wet areas. Ressi TA 230 Grey can easily be applied using the application spectrum as defined by BS EN 5385-1.