Home > Companies > SMET Building Products Ltd > Sopro VF 419 - VarioFlex® Silver Large-Format Flexible Tile Adhesive

A silver-grey, highly flexible, high-coverage, extra-rapid-set, cementitious, thin, medium and floating-bed tile adhesive for efficient laying of tiles and discolouration-sensitive natural stone units with full rear-face wetting using floating method. Particularly suitable for large-format units and also on calcium sulfate screeds. With high crystalline water binding capacity. Low-chromate to Regulation (EC) No 1907/2006, Annex XVII.

Features and benefits:

  • Early high strength, walkable and groutable after only three hours (approximately).
  • Meets C2 EF S1 requirements to DIN EN 12 004.
  • Silver-grey adhesive colour, also suitable for light-coloured, translucent natural stone types.
  • For deformation-sensitive tiles.
  • For large-format units.
  • Ideal for use in conjunction with tile levelling systems.
  • Consistency adjustable for thin, medium and floating-bed laying.
  • EMICODE system of GEV (German Association for Control of Emissions in Products for Flooring Installation): EC1PLUS R (‘very-low-emission-plus’) rating.
  • CE marked (CRP-DE3/419-25.1.eng, EN 12 004:2007).


  • Stoneware and fully vitrified stoneware tiles, clinker floor tiles, mosaic, light-coloured, discolouration-sensitive and translucent natural stone units, cast stone units, terracotta, dishing-prone, resin-bonded tiles, e.g. agglomerate tiles. Particularly suitable for large-format fully vitrified stoneware units. For fast-track refurbishment/ renovation on tightly scheduled projects. For use in private housing as well as in commercial and industrial facilities subject to high mechanical loads.
  • For floors, indoors and outdoors.


- Sopro GD 749 primer:

For use on high or variable-suction substrates; cement screeds, calcium sulfate (anhydrite and self-levelling anhydrite) screeds for tile formats < 1.0 m², board subfloors.

- Sopro HPS 673 special primer:

For use on smooth and closed-pore substrates, e.g. existing tile, terrazzo, natural and cast stone coverings; adhesive residue from PVC flooring or carpeting; mastic asphalt screeds without sand blinding.

- Sopro MGR 637 multi-purpose primer/ Sopro EPG 522 epoxy primer:

For use on calcium sulfate-based (anhydrite and self-levelling anhydrite) screeds for tile formats ≥ 1.0 m².

Standard product features

Technical characteristics:

  • Colour: Silver grey.
  • Application temperature: 5–25°C (maximum).
  • Coverage: Approximately 1.3 kg/m² per mm coat thickness.
  • Walkable/ grout-able: After 24 hours (approximately).
  • Loading: After five hours (approximately). For underwater applications, commercial facilities and in conjunction with floor heating: After 2–14 days (consult technical literature for details).
  • Reaction to fire: Class A2fl-s1.
  • Early tensile adhesion strength: ≥ 0.5 N/mm².
  • Tensile adhesion strength after dry, water, heat storage and freeze-thaw cycles: ≥ 1.0 N/mm².

NBS Specification

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This product is associated with the following NBS Create clause:
45-50-00/325 Cementitious adhesives

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



SMET Building Products Ltd


+44 (0)28 30266833

Product reference

Sopro VF 419 - VarioFlex® Silver Large-Format Flexible Tile Adhesive

Manufacturer details

93A Belfast Road,
Co Down, BT34 1QH
Tel +44 (0)28 30266833
Fax +44 (0)28 30267619
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