Tile & Stone Fixing Solutions
Tile Adhesive – Ultima PU Flex
Ultima PU Flex is a versatile adhesive for tiles and natural or artificial stone. It bonds securely to plywood, metal, or any stable surface, including deformable ones, and is suitable for indoor and outdoor use on floors, walls and even on ceilings.
- Bonds to plywood, metal and deformable surfaces
- Indoor and outdoor use on floors, walls and ceilings
- Suitable for swimming pools, Turkish baths and areas subject to freezing
- Working temperature from –40°C to 70°C
Product details
- Classification
- Type 5T S2
- Standards
- IS 15477:2019 Type 5 'T' S2 · EN 12004 C2TE S2
- Pack size
- 4 kg mono pack (3.2 kg Part A + 0.8 kg Part B)
- Coverage
- 1.5 kg per m² per mm of thickness
- Shelf life
- 12 months
Suitable for
- Flooring and walls in residential, commercial and industrial buildings
- Street furniture
- Underfloor heating systems
- Work surfaces in industrial settings or laboratories
- Swimming pools, Turkish baths, thermal water baths and fountains
- Areas subject to freezing
Apply on
- Mineral screeds and those made with BX Screed binder
- Prefabricated concrete or fresh concrete castings
- Cement plasters and cement-lime mortar
- Floors and walls in polyurethane resin, glazed tiles, cement-based and resin floor tiles, porcelain tiles
- Wood, metals, rubber, PVC, linoleum, glass surfaces
Physical properties
| Appearance | Part A – white paste / Part B – white paste |
| Adhesive thickness | 2 to 10 mm |
| Shelf life | 12 months |
| Pack | Mono pack 4 kg (3.2 kg + 0.8 kg) |
| Temperature range for application | +10°C to +30°C |
| Pot life | ≥ 30 min |
| Open time | ≥ 30 min |
| Adjustability | ≥ 30 min |
| Vertical slip | ≤ 0.5 mm |
| Foot traffic | 24 hours |
| Grouting | 24 hours on floors / 12 hours on walls |
| Interval before normal use | 3 days |
| Coverage | 1.5 kg/m² per mm of thickness |
Performance — IS 15477:2019 / EN 12004
Ultima PU Flex conforms to IS 15477:2019 Type 5 'T' S2 · EN 12004 C2TE S2.
| Parameter | Requirement | Result | Test method |
|---|---|---|---|
| Shear adhesion after 28 days | ≥ 6 N/mm² | IS 15477:2019 | |
| Shear adhesion after water immersion | ≥ 3.5 N/mm² | EN 12004-2 | |
| Shear adhesion after thermal shock | ≥ 3.5 N/mm² | EN 12004-2 | |
| Adhesion to concrete after 7 days | ≥ 2.5 N/mm² | EN 12004-2 | |
| Vertical slip | ≤ 0.5 mm | EN 12004-2 | |
| Elongation at break after 7 days | Approximately 30 % | ||
| Working temperature | –40°C to 70°C | ||
| Deformability | ≥ 20 mm | IS 15477:2019 |
How to apply
- 01
Surface preparation
- Substrates must be compact, consistent, and free from dust, oil, and grease.
- Uneven areas should be corrected with suitable smoothing and finishing products.
- 02
Mixing
- Mix parts A and B of Ultima PU Flex in the ratio of 3.2:0.8 using a low-rev helicoidal agitator.
- 03
Application
- Apply Ultima PU Flex with a suitable toothed trowel, pressing each tile into the ribbed adhesive for maximum coverage.
- 04
Cleaning
- Clean tools and surfaces with water and alcohol while the adhesive is still fresh.
Important notes
- Protect from frost. Avoid direct exposure to sunlight and sources of heat.
- Do not use on surfaces that are not fully cured or are subject to rising moisture.
Disclaimer. Specifications may be modified without prior notice. The displayed results are representative and based on the testing procedures employed. Real-world performance will be influenced by installation technique and on-site conditions.
