Mapei Ultracare Keranet Easy Grout Residue Remover Spray 750mlUltraCare Keranet Easy is a simple and ready to use product to save time as it can be used also immediately after grouting.\nIt is suitable for use on porcelain, ceramic, glass mosaics, quarry tiles, terracotta and acidresistant natural stone.When installing large-format tiles, it is perfect for removing fresh cementitious grout residues to avoid the \u201Cframe effect\u201D.\nSuitable for cleaning the back side of tiles prior to installation.\nApplication:When used immediately after cementitious grouts, wait until it loses its plasticity and becomes opaque (the time required depends on the type of grouting product used).\nThen spray UltraCare Keranet Easy evenly on the surface to be cleaned, leave it to react for 1-2 minutes and then proceed with a first cleaning using a moist sponge working diagonally over the grout joints.Rinse the sponge frequently using two different containers of water, one to remove the excess groute