Sopro FF 450 Flexible Tile Adhesive

Cementitious flexible tile adhesive, meeting C2 TE S1 requirements to DIN EN 12004, offering high coverage and excellent workability, for wall and floor installation of ceramic tiles and fully vitrified stoneware, also for underwater applications, e.g. in swimming pools and process water containers. Suitable for use in conjunction with wall and floor heating and waterproof membranes.

Coverage: Approx. 1.1 kg / m² / mm


Suitable for earthenware, stoneware, and fully vitrified stoneware tiles, clinker floor tiles, mosaic, discoloration-resistant natural stone units, and cast stone units. In residential, commercial, and industrial facilities, catering kitchens, bathrooms, damp and wet spaces, swimming pools, process water containers, on facades, balconies, and patios.


Featured Benefits of Sopro FF 450 Flexible Tile Adhesive

  • For walls and floors, indoors and outdoors
  • C2: tensile adhesion strength ≥ 1.0 N/mm²
  • T: thixotropic – high sag resistance due to fibre reinforcement
  • E: extended open time > 30 minutes
  • S1: deformability ≥ 2.5 mm
  • 2-in-1 formulation: thin bed and floating bed
  • Low-chromate to Regulation (EC) No 1907/2006, Annex XVII
  • DGNB: Top quality level 4, Line 8, based on DGNB (German Sustainable Building Council) criterion “ENV1.2 Local Environmental Impact” (2018 version)
  • For healthy living: Recommended by Sentinel Haus Institut

Related Downloads

icon-pdf TDS Sopro FF 450 – Cementitious Flexible Tile Adhesive

icon-pdf TDS SMET_Tiling Onto Calcium Sulphate Floor Screed_System II

icon-pdf Smet Professional Tiling Systems Brochure

icon-pdf EPD_Sopro FF 450 Flexible Tile Adhesive

BIM BIM Objects

Sopro FF 450 Flexible Tile Adhesive was used in Center Parcs Longford, Ireland

Technical Details Sopro FF 450 Flexible Tile Adhesive

Properties Excellent contact adhesion, high sag resistance and high water retentivity, resistant to water and freeze-thaw cycles, very smooth workability, particularly high coverage,extended open time.
Mixing Ratio see TDS above
Primer For high- and variable-suction substrates: Sopro GD 749 primer and Sopro SG 602 primer-sealer For non-absorbent substrates: Sopro HPS 673 bonding primer For calcium sulphate screeds: Sopro MGR 637 multi-purpose primer (for all sizes), Sopro GD 749 primer (sizes up to 0.2 m²), Sopro SG 602 primer-sealer (sizes up to 1.0 m²) For stabilizing friable mineral substrates and as adhesion promoter on smooth substrates: Sopro EPG 1522 epoxy primer For further information, please consult relevant technical data sheets.
Maturing time 3 – 5 minutes
Working life Approx. 4 hours; stiffened mortar shall not be retempered by the addition of water or fresh mortar to restore workability.
Coverage Approx. 1.1 kg/m² per mm coat thickness
Open time Approx. 30 minutes
Walkable/groutable After approx. 12 hours or after setting of adhesive; take measures to spread loads over the floor.
Loadable After approx. 3 days; in commercial facilities after approx. 14 days, in areas subject to high wet exposure after approx. 7 days, for underwater applications after approx. 21 days, in conjunction with wall and floor heating after approx. 14 days
Application temperature Between +5 °C and max. +30 °C; use of a rapid-set Sopro thin-bed adhesive is recommended for external areas during the cold season
Coverage Approx. 1.1 kg/m² per mm coat thickness
Shelf life Approx. 12 months, subject to storage on a pallet in dry conditions in original unopened containers
Underwater and permanently underwater area Suitable

Available in 25 kg bag, 5 kg bag

SMET has a wide range of Professional Tiling systems, including, Rapid-set Tile adhesives, High-Strength adhesive, Flexible Adhesive, and Large-Format adhesives, primers, multi-purpose primers, sealers, and tools available for your tiling needs.