Description
UltraTile ProFlex SP Rapid Set Flexible Tile Adhesive in Grey is a single-part, polymer-modified S1 flexible adhesive built for trade tilers who need a fast-track installation without compromising on flexibility or bond strength. Classified S1 to EN 12004 (C2FT), it offers a high level of deformation tolerance for substrates subject to slight movement or vibration, and takes light foot traffic within 3 hours of installation.
Key Benefits
ProFlex SP combines rapid set properties with genuine S1 flexibility, letting tilers turn jobs around faster while still getting the movement tolerance needed for timber floors, underfloor heating and swimming pools. Its polymer-modified formulation delivers enhanced adhesion and high bond strength, including in installations subject to moisture. Backed by a 25-year guarantee, it's a dependable one-bag solution for fast-track domestic and commercial tiling.
Applications
Suitable for fixing ceramic, porcelain, glass, mosaic, marble, travertine, granite, limestone, terracotta, quarry, slate, quartz and brick slip tiles to walls and floors, internally and externally. ProFlex SP Grey is suitable for wet rooms, domestic and communal showers, swimming pools, conservatories, and both electric and water pipe underfloor heating systems.
Performance & Features
- S1 flexible classification to EN 12004, C2FT
- Rapid set properties for fast-track installation
- Light foot traffic within 3 hours (temperature and substrate dependent)
- Single-part, polymer-modified formulation — just add water
- Suitable for bed thicknesses from 3mm to 20mm
- 25-year manufacturer guarantee
Compatibility
Compatible with concrete, sand/cement screed, tile backer boards, cement-faced fibre boards, anhydrite/calcium sulphate screeds, tile-on-tile applications, firm and stable plaster, plasterboard, sand/cement render, concrete brick/block, hard vinyl tiles and flooring-grade asphalt. Use alongside UltraTile ProPrimer and tanking systems for a complete, specification-backed tiling build-up. Not suitable for resin-backed tiles.
Millcot supplies genuine UltraTile trade products with full technical and safety datasheets, backed by knowledgeable trade support — helping you specify and install with confidence.
Key Features
- Suitable for porcelain, ceramic, mosaic, natural stone, glass and quartz tiles
- S1 flexible classification — accommodates slight substrate movement or vibration
- Rapid set for fast-track jobs, 2.5 hour set time
- Suitable for electric and water pipe underfloor heating
- Wall and floor use, internal and external
- Professional trade quality with a 25-year guarantee
Applications
- General wall and floor tiling, internal and external
- Wet rooms, domestic showers with tray and communal showers
- Swimming pools and conservatories
- Underfloor heated floors (electric matting and piped water systems)
- Tile-on-tile overlay installations
- Fast-track commercial and domestic tiling projects
Technical Specifications
- Unit size: 20kg bag
- Colour: Grey
- Mixing ratio: 4.2–4.5 litres of water per 20kg
- Bed thickness: 3mm–20mm
- Coverage: 4.5kg/m² at 3mm bed thickness
- Pot life: 60 minutes at 20°C
- Set time: 2.5 hours at 20°C
- Grout after: 4 hours
- Application temperature: 5°C to 25°C
- Classification: EN 12004 Class C2FT S1
- Guarantee: 25 years
Timings are approximate and vary with temperature, substrate and site conditions.
What's Included
Each pack contains 1 x 20kg bag of ProFlex SP Rapid Set Flexible Tile Adhesive in Grey powder form, ready to mix with clean water on site.
FAQs
How quickly can I walk on tiles fixed with ProFlex SP?
ProFlex SP takes light foot traffic within around 3 hours of installation, depending on temperature and substrate — making it ideal for fast-track jobs.
Is ProFlex SP Grey suitable for underfloor heating?
Yes, its S1 flexible classification makes it suitable for use over electric matting and piped water underfloor heating systems, subject to normal commissioning procedures.
Can I use this adhesive in swimming pools and wet rooms?
Yes, ProFlex SP is suitable for swimming pools, wet rooms, and domestic and communal showers.
How long before I can grout?
Grouting can typically begin after 4 hours, once the adhesive has set hard — always check before grouting or walking on the tile.
What's the pot life once mixed?
Approximately 60 minutes at 20°C. Only mix sufficient material to be used within this time, and don't re-wet or dilute adhesive that has started to thicken.
What is the difference between ProFlex SP and ProFlex SPES?
Both are S1 flexible adhesives, but ProFlex SP is a rapid-set formulation (2.5 hour set time) for fast-track work, while ProFlex SPES is a standard-set formulation with a longer open time for larger areas.
Download the UltraTile ProFlex SP Technical Data Sheet (PDF)