Create neat, durable grout joints with Ultracolor Plus Silver Grey 111 Flexible Grout 5kg. This fast-setting flexible grout is suitable for joints from 2mm to 20mm and can be used on walls and floors, indoors and outdoors. BioBlock technology helps resist mould growth, while DropEffect helps repel water and makes joints easier to keep clean. Designed to maintain an even colour, it is also suitable for wet areas, swimming pools and floors with underfloor heating. The Silver Grey 111 shade coordinates with matching Mapesil AC silicone for a consistent finish.