- Stock: 69
- Brand: MAPEI
- Model: MP-KRF25
Keraflex is a grey or white powder composed of cement and graded aggregates. It contains a high quantity of synthetic resins and special admixtures created according to a formula developed in MAPEI’s research laboratories. A mortar with the following features is obtained when mixed with water:
• easily workable;
• highly thixotropic: Keraflex can be applied on a vertical surface without slumping or letting the tiles slip, even for heavy tiles. Tiles can be installed from the top towards the bottom without using spacer pegs;
• perfect adherence to all materials normally used in building;
• hardens without appreciable shrinkage;
• extended open time.
Features
• Enhanced Adhesion Strength: Keraflex provides strong, durable adhesion, making it ideal for heavy or large-format tiles on floors and walls.
• Extended Open Time: It allows more working time for positioning tiles, which is especially useful in large or intricate installations.
• Non-Sag Formula: Keraflex is formulated to prevent tiles from slipping or sagging on vertical installations, making it suitable for walls.
• Water and Freeze-Thaw Resistant: Once cured, Keraflex offers water and freeze-thaw resistance, making it suitable for indoor and outdoor applications.
• Easy Workability: Its creamy consistency makes it easy to spread and handle, leading to efficient application.
• Flexible for Movement: The adhesive has some flexibility, which helps accommodate slight movement or vibration, reducing the risk of tiles cracking or becoming dislodged.
• Low Dust Technology: Mapei has developed some Keraflex options with low dust, which is safer and more convenient for indoor use.
• Packaging: 25 kg/bag.
• Storage: 12 Months in a normal environment.
• Consumption: 2-5 kg/m2 per mm of thickness.
Keraflex is CE marked, as declared in ITT certificates n° 25040476/Gi (TUM) and n° 25080239/Gi (TUM) issued by the Technische Universität München laboratory (Germany)
Technical Data
In compliance with:
- European EN 12004 such as C2TE
- ISO 13007 such as C2TE
PRODUCT IDENTITY
• Consistency: powder
• Colour: grey or white
• Bulk density (kg/m ): 1,300
• Dry solids content (%): 100
• EMICODE: EC1 Plus – very low emission
APPLICATION DATA (at +23°C and 50% R.H.)
• Mixing Ratio: 100 parts Keraflex grey with 27 – 29 parts water by weight 100 parts Keraflex white with 27 – 29 parts water by weight
• Consistency of mix: pasty
• Density of the mix (kg/m ): 1,500
• pH of mix: 13
• Pot life of mix (hrs): >8
• Application temperature (°C): from +5°C to +40°C
• Open time (min.) (according to EN 1346): >30
• Adjustment time (min.): 45
• Ready for grouting on walls (hrs): after 4 - 8
• Ready for grouting on floors (hrs): after 24
• Set to light foot traffic (hrs): 24
• Ready for use (days): 14
FINAL PERFORMANCES
• Bonding strength according to EN 1348 (N/mm ):
- initial adhesion (after 28 days): 2.2
- bonding after heat exposure: 2.0
- bonding after immersion in water: 1.5
- bonding after freeze/thaw cycles: 1.7
• Resistance to alkalis: excellent
• Resistance to oils: excellent (poor to vegetable oils)
• Resistance to solvents: excellent
• Temperature when in use (°C): from -30 to +90
Where To Use
• Interior and exterior bonding of ceramic tiles (single fired, double fired, porcelain tiles, terracotta, klinker, etc.) stone materials and mosaics of every type on floors, walls and ceilings. Also suitable for spot bonding of insulating materials such as expanded polystyrene, rock and glass wool, Eraclit® (wood-cement panels), sound-deadening/reduction panels, etc.
Some application examples
• Bonding ceramic tiles (single fired, double fired, porcelain, clay tiles, klinker, etc.), stone materials and mosaics on the following substrates:
• cement or mortar wall renders;
• interior aerated concrete block walls;
• gypsum or anhydrite after having first applied Primer G or Eco Prim T Plus;
• gypsum board; · underfloor heated installations;
• cement screeds, as long as they are sufficiently cured and dry;
• interior painted walls, as long as the paint is firmly anchored;
• waterproofed membranes for Mapelastic or Mapegum WPS line.
• Tile on tile of existing flooring.
• Bonding small sized tiles in swimming pools and basins.
• Bonding floors subject to heavy stress.
Recommendation
• Do not use Keraflex:
• on concrete subject to high shrinkage.
• on walls and floors subject to strong movement or vibration (wood, fibre-cement, etc.).
• on metal surfaces.
• Technical Data Sheet (T.D.S).
Disclaimer
All product images shown are for illustration purposes only. Actual products may varies in term of size, type, brand, version, colour, and other relevant characteristics.