Mapei Ultracolor Grout

Mapei Ultracolor Grout stands out thanks to its DropEffect® water-repellent technology and BioBlock® mould-resistant properties, which help keep grout joints cleaner and more hygienic over time compared to standard grouts. It is also an anti-efflorescence formula, meaning you are far less likely to see unsightly white salt deposits appearing on the surface after installation. These premium features make it particularly well suited to bathrooms, kitchens, and other areas where cleanliness and durability matter.

Mapei Ultracolor Grout is designed to fill joints of up to 20 mm wide, making it a versatile choice for a broad range of tile sizes and laying patterns. Whether you are working with small mosaic tiles with narrow joints or large-format tiles with wider spacing, Ultracolor Grout can accommodate the job. This makes it a popular single-product solution for tilers working across multiple projects.

Mapei Ultracolor Grout is a quick-setting formula that is typically set to light foot traffic in approximately 3 hours under normal conditions, with the grout considered fully ready for use after 24 hours. However, if you are grouting around basins or swimming pools, you should allow a full 48 hours before exposing the joints to water. Keep in mind that the pot life of the mixed grout is only 20-25 minutes, so only mix what you can use in that time.

Mapei Ultracolor Grout is available in 40 colours, giving you a wide palette to complement or contrast with your chosen tiles. Whether you are looking for a classic white or grey to blend seamlessly with your tiles, or a bolder tone to make a design statement, there is a shade to suit most schemes. You can browse the full colour range on the product listing at Stoke Tiles to find the best match for your project.

Yes, Mapei Ultracolor Grout is an excellent choice for shower enclosures, bathrooms, and other wet environments thanks to its DropEffect® water-repellent technology, which causes water to bead and roll off the grout surface rather than soaking in. The BioBlock® formula also actively resists mould and mildew growth, which is particularly beneficial in humid areas. Do remember to allow the full 48-hour curing period before the grout is exposed to water in areas such as basins or pools.