Mapei Fast-Setting Grout, 5Kg, Suitable for Cool Light-Grey Joints in Minimal and Contemporary Tiling, Arctic Grey - Pack of 4

It features an anti‑efflorescence formulation to keep its colour over time, an aluminium oxide supplement for enhanced surface abrasion resistance and stain protection, and compatibility with underfloor heating. It also mixes with both powder and liquid admixtures for versatile use and delivers strong adhesion on various tile and natural stone surfaces.

The bundle contains four bags of Ultracolor Plus 127 Alu grout, each weighing 5 kg, totaling 20 kg of grout for your tiling project.

Yes. It is designed for both indoor and outdoor applications, with weather- and moisture-resistant properties that help maintain the finished look in exterior environments.

It works well with ceramic, porcelain, and natural stone (including marble). Its formulation supports good adhesion on a range of tile types and stone applications.

General steps: prepare clean, dry joints; mix the powder with water or recommended admixtures to a smooth, workable consistency; apply the grout into joints with a rubber float, ensuring joints are fully filled; remove excess grout after the initial set and clean the surface to reveal a uniform finish; allow sufficient curing time before use. If you’re using admixtures, follow the guidance for those additives to achieve the best performance.

The anti‑efflorescence formulation helps preserve colour, and the additive system supports stain resistance. To keep joints looking uniform, clean grout haze promptly during installation and avoid prolonged exposure to water on fresh joints until the grout has adequately cured.

Wear appropriate PPE such as gloves and eye protection when mixing and applying. Use in a well-ventilated area, avoid inhaling dust, and wash skin with soap and water if contact occurs. Keep the product out of reach of children and animals.

Ultracolor Plus 127 Alu includes an aluminium oxide component for enhanced abrasion resistance and stain protection, making it especially suitable for high-traffic or stone-rich installations. For similar options on Fepy, you can consider these alternatives: Graphite (https://fepy.com/product/mapei-ultracolor-plus-127-graphite-4x5kg) and Ivory (https://fepy.com/product/mapei-ultracolor-plus-127-ivory-4x5kg). Another shade option available is Pearl White (https://fepy.com/product/mapei-ultracolor-plus-127-pearl-white-4x5kg).

The multi-bag pack provides a cost-effective solution for mid-to-large tiling projects, offering substantial grout quantity in a convenient bundle and reducing the need for multiple purchases.

Store the grout in a dry, well‑ventilated area in its original, tightly sealed packaging. Keep away from moisture and extreme temperatures to maintain its performance and shelf life.

Yes. It is suitable for use with underfloor heating, which helps maintain flexibility and adhesion in heated installations.