Mapei Ultracolor Plus is a high-performance, quick-setting grout that combines efficiency with durability. Suitable for joints up to 20mm wide, it's mould-resistant, water-repellent, and features anti-efflorescence properties for consistent, uniform colour. This fast-drying cementitious mortar in Cement Grey is perfect for both interior and exterior wall and floor applications and is easy to apply and clean.
Key features
Suitable for floor and wall use throughout the home
Key facts
Weight
5kg
Sold per
Bag
Suitability
Floor, Wall
Material
Grout
Coverage
approx. 15 sqm (dependant on size of joint)
Colour
Grey/Silver
Range
Mapei
Delivery and returns
Standard delivery£25.001 to 3 working days. Free over £299.
Next day delivery£45.00Order by 12pm, Monday to Friday.
Choose your day£35.00Pick a weekday at checkout, at least 3 working days ahead. Not offered when free samples are in your basket.
Delivering to Northern Ireland (BT postcodes)? Email [email protected] and we will arrange it. All prices Exc. VAT.
As a guide, 1kg of Mapei Ultracolor Plus Cement Grey will fill the joints of approximately 1.33 square metres of 100mm x 100mm x 8mm tiles with 3mm wide joints. Coverage will vary depending on your tile size, thickness and joint width, so it is worth calculating your specific requirements before ordering. This 5kg bag therefore covers roughly 6.65 square metres under those conditions, giving you a useful starting point for estimating quantities.
Yes, Mapei Ultracolor Plus Cement Grey features BioBlock Technology which makes it mould-resistant, so it is an excellent choice for bathrooms and kitchens where moisture and humidity are common. It is also water-repellent and easy to clean, helping to keep grout lines looking fresh with minimal maintenance. The anti-efflorescence formula further ensures a uniform grey colour over time, preventing the white powdery staining that can affect lesser grouts.
Once you have mixed Mapei Ultracolor Plus, you have a pot life of 20-25 minutes, so it is best to work in manageable sections. You should wait 15-30 minutes after application before finishing the joints, and the surface can bear light foot traffic after approximately 3 hours. Planning your work around these times will help you achieve clean, consistent joint lines and avoid disturbing the grout before it has properly set.
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Often bought together
Ordering tiles too? Adhesive and grout have no minimum when they are in the same order as tiles.
“Looking for spare tiles everywhere to complete my bathroom. StokeTiles had them and were happy to help accommodate my bespoke order an dget them tol me proto. Super grateful”
Rick2 November 2026
“Excellent service and staff helped me to match my tiles and were responsive. Fast delivery and good product.”
Clare Gill23 October 2026
“customer service team and overall service were excellent. query and quote was dealt with quickly for the replacement of 6 tiles of a discontinued line which Stoke Tiles had in stock. delivery arrived within 24hrs of order being placed.”
Looking for spare tiles everywhere to complete my bathroom. StokeTiles had them and were happy to help accommodate my bespoke order an dget them tol me proto. Super grateful
