Mapei Keraflex C2TE Tile Adhesive

Product Overview

Developed by Mapei in Italy, Keraflex is an improved cementitious tile adhesive containing a high proportion of synthetic resins and special additives. When mixed with water, it forms an easily workable paste with high thixotropic properties — tiles will not slip on vertical surfaces, allowing top-to-bottom installation without spacer pegs. After curing, shrinkage is minimal, providing excellent bonding to all common construction substrates. Extended open time (per manufacturer data) enables precise installation over large areas.

Key Features

• Improved C2 class — higher bonding strength than standard C1 (per manufacturer data), suitable for a wider range of tiles and substrates
• Non-slip — excellent thixotropic properties, even heavy tiles stay firmly in place on vertical surfaces
• Extended open time — generous working time for large-area installation
• Low shrinkage — minimal shrinkage after curing, reducing risk of debonding
• Low emissions — EMICODE EC1 R Plus certified (per manufacturer data), very low VOC emissions
• Versatile applications — suitable for indoor and outdoor use, including swimming pools and heavy-duty floors

Applications

• Indoor and outdoor floor and wall installation of all types of ceramic tiles (glazed, full-body, porcelain, terracotta, klinker, etc.)
• Stone materials and all types of mosaics
• Cement mortar rendered surfaces and cement screeds
• Interior aerated concrete block walls
• Gypsum and anhydrite surfaces (Primer G required)
• Gypsum board
• Underfloor heating systems
• Interior painted walls (paint must be firmly anchored)
• Over Mapelastic or Mapegum WPS waterproofing membranes
• Tile-on-tile over existing flooring
• Small-format tiles in swimming pools and basins
• Heavy-duty floors
• Spot-bonding insulating panels

Not Suitable For

• Concrete substrates subject to high shrinkage
• Walls and floors subject to strong movement or vibration (wood, fibre-cement, etc.)
• Metal surfaces

Packaging

• 25 kg paper bags
• 4x5 kg carton boxes

Available in grey and white.

Storage

Store in a dry, cool place. Shelf life in original unopened packaging — refer to packaging label.

Important Notes

• Substrate must be flat, sound, clean, and free from grease, dust and loose material
• Cement substrates must be fully cured to avoid shrinkage after tiling
• Gypsum and anhydrite substrates must be abraded and primed
• For exterior large-format tiles or swimming pool tiling, use back-buttering to ensure full coverage
• Protect from rain after application; curing time depends on weather and humidity conditions
• Product contains cement — wear protective gloves and goggles during application
• For professional use only

For detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet

FAQ

Not sure which tile adhesive to choose? These articles can help

• Tile Adhesive vs Cement-Sand: Which is Better for Tiling?
• C1 vs C2 Tile Adhesive: Tile Type Determines the Right Choice
• Complete Tile Adhesive Guide: All EN 12004 Grades Explained