When using this grout in wet areas such as shower floors we recommend adding a grout booster to the mix in a ratio of 50% water and 50% grout booster. CLICK HERE FOR GROUT BOOSTER
Mould Resistant and water repellent.
Polymer fortified reduces the likelihood of cracking.
Coverage - Note, when grouting Carrara Marble Mosaics in a wet area you will need to fill the whole joint with grout not just the top half and so please allow more grout for these areas.
Technical Data Sheet