Description
UltraTile ProFlex SPES Standard Set Flexible Tile Adhesive in Grey is a single-part, polymer-modified S1 flexible adhesive formulated for professional tilers who need reliable bonding with a genuinely long working time. Classified C2TE S1 to EN 12004 and EN 12002, it delivers the deformability and enhanced adhesion needed for demanding wall and floor tiling projects, including underfloor heating installations and substrates subject to slight movement. This listing is for a full pallet of 48 x 20kg bags — the ideal trade buy for large-scale or multiple tiling projects.
Key Benefits
- C2TE S1 classification to EN 12004 and EN 12002
- Extended pot life with dependable early grab
- High deformation tolerance for movement-prone substrates
- Suitable for bed thicknesses from 3mm to 20mm
- Suitable for underfloor heating systems
- 25-year manufacturer guarantee
Applications
Suitable for fixing porcelain, ceramic, mosaic, natural stone and glass tiles to walls and floors, internally and externally. ProFlex SPES Grey performs reliably over timber floors requiring flexibility, swimming pool surrounds, and underfloor heating systems, making it a genuinely versatile, one-bag solution for most trade tiling applications. Used by professional tilers, bathroom fitters and builders across bathroom and wetroom tiling, kitchen and general internal floor tiling, external tiling in sheltered locations, and correctly prepared timber floor substrates.
Technical Specifications
- Unit size: 20kg bag
- Pallet quantity: 48 bags per pallet
- Pallet weight: approx. 960kg
- Colour: Grey
- Mixing ratio: 5.2–5.5 litres of water per 20kg
- Bed thickness: 3mm–20mm
- Pot life: 2 hours at 20°C
- Set time: 16 hours at 20°C
- Grouting time: 18 hours
- Application temperature: 5°C to 25°C
- Classification: C2TE S1, EN 12004 & EN 12002
- Guarantee: 25 years
Timings are approximate and vary with temperature, substrate and site conditions.
What's Included
- 48 x 20kg bags of ProFlex SPES Standard Set Flexible Tile Adhesive in Grey powder form
- Full pallet, palletised for kerbside/ground-floor delivery
Frequently Asked Questions
Is ProFlex SPES suitable for underfloor heating?
Yes, its S1 flexible classification makes it suitable for use over underfloor heating systems, subject to normal commissioning procedures.
Can I use ProFlex SPES Grey with large format porcelain tiles?
Yes, it is suitable for porcelain, ceramic, mosaic, natural stone and glass tiles, including larger format tiles when applied at the correct bed thickness.
How long before I can grout?
Grouting can typically begin after 18 hours at 20°C, though this will extend in cooler conditions.
Why buy a full pallet instead of individual bags?
A full pallet of 48 bags offers the best price per bag and ensures consistent batch supply for larger tiling contracts, reducing the risk of running short mid-project.
What is the difference between the Grey and White versions?
Both are the same S1 flexible formulation; Grey is typically used where the adhesive colour will not show through the tile, while White is used behind light-coloured or translucent tiles and natural stone.
Millcot supplies genuine UltraTile trade products with full technical and safety datasheets, backed by knowledgeable trade support — helping you specify and install with confidence.
Download the UltraTile ProFlex SPES Technical Data Sheet (PDF)

