HIGH PERFORMANCE POLYURETHANE FLEXIBLE ADHESIVEDU PU Flex is a professional, superior-technology, two-part polyurethane system with high elasticity and anti skid property, suitable for high-resistance laying on flooring and wall of homogeneous and ceramic tiles, glass mosaic, large-size tiles, humidity sensitive marble and natural stone, on deformable and also non-absorbent substrates, wood and derivatives. The DU PU Flex technology ensures superior- performance adhesion for laying ceramic tiles and natural stone on porous surfaces such glass or metal. DU PU Flex provides balanced thixotropy and superior-performance elasticity ensured by the use of stabilized polyurethane resins and micronised, pure mineral fillers, for rapid and secure laying operations on high deformable and highexpansion substrates.
Green Building Rating
Areas of Application
Features & Benefits
Method of Application
Substrates must be compact and consistent, free from dust, oil and grease, free from any rising damp, with no loose, flaky, or imperfectly anchored parts. The substrate must be stable, without cracks and have already completed the curing period of hygrometric shrinkage.
Undulated areas must be corrected with suitable smoothing and finishing products
DU PU Flex is prepared by mixing together parts A and B from the bottom upwards, using a low- rev (400/min.) helicoidal agitator, respecting the preset ratio of 7.5 kg : 2.5 Kg of the packs.
Pour part B into the bucket containing part A, being careful to mix the two parts uniformly until a smooth, even coloured mixture is obtained. The user must mix a quantity of adhesive which can be consumed within 1 hour at +23‹C / 50% R.H. Packs of DU PU Flex must be stored at a temperature of . +20‹C for at least 2/3 days prior to use.
Precautions & Limitations
This shall depend on the nature and flatness of the surface and the method of application, but at 1mm thickness it is 2 approximately 2 – 4 Kg / M for the unit which consist of Part A 7.5 Kg and part B 2.5 Kg with a suitable serrated trowel ( serrations of not more than 7mm ) . For good coverage, it is vitally important that all surfaces should be clean, smooth, plumb, level and free from defects and undulations.
Health & saftey Precautions
Always use protective gloves and eyewear both during mixing and during application avoid any contact with the skin. Use in a well-ventilated environment
|Appearance||Part A white paste / part B straw-colored liquid|
|Mixing ratio||Part A : Part B = 7.5 kg : 2.5 kg|
|Viscosity of the mixture||54000 mpa.s, rotor 92 rpm 4 - brookfield method|
|Pot life||≥ 1 h|
|Temperature range for application||from + 10°c to 45°c|
|Open time||≥1 hour - EN 1346|
|Foot traffic||24 hours|
|Grouting||12 hour on walls / 24 hours on flooring|
|Interval before normal use||3 days|
|Shear adhesion after 7 days.||≥ 5 Mpa, EN 12003|
|Shear adhesion after immersion into water||≥ 5 Mpa,EN 12003|
|Shear adhesion after theramal shock||≥ 3.5 Mpa,EN 12003|
|Adhesion to concrete after 7 days||≥ 2.5 Mpa (concrete failure)EN 1348|
|Working temperature||From - 40°C to +110°C|
|Conformity||R2T, EN 12004|
|Shelf life & storage||12 months in the original packaging|
|Packaging Details||7.5 Kgs base bucket & 2.5 Kgs, 10 Kgs hardener bottle.|