UniBond Ultra Force contains fibre technology for ultimate durability. This wall tile grout is a ready to use waterproof grout for interior ceramic, porcelain and mosaic wall tiles. The triple protection system repels and prevents mould. The revolutionary slow release anti-mould fungicide lasts more than 50% longer than standard fungicides.How to use1. Ensure that the grout joints are clean, dry and free from dust2. Working in small areas at a time, press the grout into the joints with a grout float3. Smooth off the grout line with a grouting tool. Remove any surplus grout immediately with a damp sponge wiping diagonally across the tiles.4. Allow the grout to dry for 24 hours then polish with a clean cloth5. To maintain a mould free grout wash regularly with a fungicidal cleaner.