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weber.set flex

weber.set flex
weber.set flex

Product benefits

  • Ready to mix, single component product
  • Superior bond strength
  • Self curing
  • Wall cladding
  • Heavy duty applications
  • For areas of moderate structural movement
  • For fixing large format tiles and stone

Specially formulated adhesive for glass mosaic tiles, with the finest particle size, making swimming pools come alive.

Product Description and Features

Product Description

weber.set flex is a high performance polymer modified adhesive for fixing tiles and natural stones of large format  on wall and floor where nominal substrate movement is expected.

Key Features

  • It is a ready to mix; a single component product.
  • It has excellent adhesion properties, no slip is observed on vertical applications.
  • Shrinkage cracks are minimized/eliminated due to its self curing properties.
  • Larger quantity of material can be mixed at a time due to its longer pot life.
  • The tiled floor can be made available for the foot traffic after 24 hours.
  • It is suitable for heavy duty applications with moderate structural movements.
  • It is recommended for external cladding.


  • It can be used for applications on cementatitious substrate self leveling screeds and blocks.
  • It is suitable for fibre cement boards, gypsum boards and renders for both interiors and exterior surfaces.
  • It can be effectively used on vinyl tiles, plywood, old tiles (porous and non porous) and on a wooden floor using weber.tec prime.

Note - For application on any other substrate please contact Saint-Gobain Weber personnel for technical assistance.

Technical Parameters

Technical Parameters
Bulk Density1.30 - 1.40 g/cc
Pot Life90 minutes
Initial Setting260 - 380 minutes
Final Setting360 - 460 minutes
Open Time20 - 30 minutes
Adjustment Time15 minutes
Slip Resistance at 40 kg/sqm0 mm
Foot traffic/groutable24 hours
Tensile adhesion strength at 28 days

Initial > 1 Mpa

After immersion > 1 Mpa

Compressive strength at 28 days> 7 Mpa
Deformability4 mm


Send or download the documentation

You can either send the documentation to en-email address, or download it.

Preparation and Application

Direction For Use


  • Clean the substrate of oil stains and bond inhibiting compounds. Also remove dirt, dust and laitance if any using high pressure water jet or any other suitable method.
  • Ensure that the substrate is flat, stable, well adhered and has a normal absorption. For fresh plasters & screeds ensure complete curing as recommended.
  • Concrete screeds, renders and block work should be cured sufficiently to avoid the shrinkage cracks.
  • Correct the local undulation/damage on the substrate at least 48 hours before the application of weber.set flex.
  • Saturate the surface well and remove excess water before application of the tile adhesive.

Mixing Ratio

  • Gradually add 3 parts of powder to 1 part of water (by volume) and mix it to a smooth, workable paste using a suitable stirrer or a low speed drill mix.
  • Do not attempt to extend the pot life by adding more water to the mix.
  • After mixing allow the mixture to stand for 2 minutes for it to mature. 

Tile Fixing

  • Apply weber.set flex over the surface using the straight edge of the notched trowel and then comb the applied adhesive using the notched side of the trowel to achieve the desired thickness. If the adhesive is buttered to the tile, then ensure proper coverage of the tile surface to avade voids.
  • Firmly press the tile into the adhesive to ensure good adhesion.


Single spreading – 4 kg/sqm
Double spreading – 6 kg/sqm

Note- The coverage will vary depending on surface undulations.


weber.set flex - 30 kgs

Shelf Life

1 year from the date of manufacturing,  for unopened bags, stored in dry condition.