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For delivery on Tuesday
When ordered before 4pm (On weekdays)
Experience outstanding results with UltraTile ProGrout Flexible, a premium polymer-modified grout designed for use in areas subject to movement or vibration. Its advanced formulation offers superior flexibility, high durability, and water resistance, making it ideal for demanding environments such as wetrooms, swimming pools, and underfloor heating systems.
With ColourShield technology, this grout delivers vibrant, fade-resistant finishes that are easy to maintain. Whether you're working on walls or floors, indoors or outdoors, UltraTile ProGrout Flexible ensures lasting performance and aesthetic appeal.
Key Features:
Flexible, polymer-enhanced formulation for movement-prone areas
Suitable for all tile types and joint widths from 1mm to 20mm
ColourShield technology for rich, long-lasting colour
Water-resistant and mould-resistant – ideal for wet environments
Easy to apply and clean with minimal effort
Perfect for use with underfloor heating systems
Protein-free – safe for use in sensitive environments
Coverage:
For a tile measuring 400mm x 300mm, with a 6mm joint width and 5mm joint depth, one 3kg bag will cover approximately 10m².
Technical Specifications:
Packaging: 3kg and 10kg bags
Conformity: CG2 WA – EN 13888
Pot Life: 30–60 minutes (depending on temperature)
Initial Drying Time: 10–15 minutes
Hard Set Time: 12 hours
Full Set Time: 24 hours
Joint Width: 1–20mm
Application Areas: Walls and floors, internal and external
Storage & Shelf Life:
Store in original unopened packaging
Keep clear of the ground in cool, dry conditions (5°C to 30°C)
Shelf Life: 12 months under recommended storage conditions
Note: Always follow the correct British/European standards for tile installation and grouting practices.
At Underfloor Heating Direct, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.
We're proud to offer a range of delivery options to suit you:
2-3 working days delivery
Next working day (Order before 4pm Monday - Friday)
Next working day before 12 noon (Order before 4pm Monday - Friday)
At Underfloor Heating Direct, our customers have 30 days to upgrade, replace or refund their orders.
Returns
At Underfloor Heating Direct, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund.
Replacements
We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement.
Upgrades
Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order.
At Underfloor Heating Direct, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a 10 year warranty for our electric underfloor heating kits.
Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.
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