weberset superflex 21

Tile adhesive for large Porcelain tiles on wall and floor.
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Tile adhesive for large Porcelain tiles on wall and floor.


  • Substrate must be dry, sound, flat / true & free of contaminants.
  • Ceramic Tiles are to be fix dry. Do not soak in water.
  • Mix weberset superflex 21 with water (or Latex Admixture) as per the recommended mix ratio. Mechanical mixing recommended.
  • Spread adhesive to the substrate at bed thickness of 3– 6 mm (may vary depending on tile size & thickness) with suitable notched trowel.
  • Spread no more than 1 m2 at a time to avoid Skin-Over. 
  • Promptly fix tiles onto adhesive bed, followed by slight twisting action to ensure good contact ie. Solid Bed Fixing.
  • Touch adhesive bed periodically to check for Skin-Over. Where adhesive bed is no longer tacky / sticky, Skin-Over had occurred. Re-Trowel adhesive bed.
  • Allocate joints of approx. 2 – 3 mm wide between tiles.
  • Remove surplus adhesive from tile surface & joints before it hardens.
  • Set for 24 hours; before grouting commences.

Key Facts

  • Excellent bonding performance
  • Low wall tile slippage
  • Excellent bond strength (x>2.0N/mm2)


  • Bed thickness : 3 - 6mm
  • Application temperature above 5°C-50°C
  • Open time Approx. 20 - 30 Minute
  • Setting time is 24 hours
  • Adjustability Time : 15 minutes – May vary depending on porosity of substrate.
  • Mix Proportion : 1 pbw water to 3 pbw adhesive (6 - 7 ltrs Water or Latex Admixture to 20 kg weberset superflex 21)
  • Shelf life : 6 month