Sakret FKe is a flexible tile adhesive for tiling walls and floors in dry and wet areas, for both interior and exterior use. It is suitable for bonding ceramic, full-body, clinker, and natural stone tiles to concrete and plaster surfaces, as well as gypsum board. It is also suitable for tiling surfaces with electric or water heating systems, for tiling over waterproofing systems, and for retiling existing tiles. A good choice for tiling high-traffic areas (offices, shopping centers, educational institutions, etc.).
FKe features high bond strength and elasticity and is gray in color. Tile adhesive class C2 TE (EN 12004, EN 1308, EN 1346).
Substrate Preparation
The substrate must be dry, sound, and free of cracks. Clean the surface of loose and flaking layers, dust, dirt, oil and paint residues, and any other layers that reduce adhesion. Roughen particularly dense and smooth surfaces beforehand. Prime the substrate surfaces with Sakret UG (dilute with water up to a 1:5 ratio depending on the substrate material) or Sakret QG (for low-absorbency surfaces and when laying over existing tiles) to ensure better adhesion.
Application Procedure
Mix the tile adhesive in a clean container with cold water until a uniform, lump-free consistency is achieved. It is recommended to use a mixer at a speed of 600 revolutions per minute. Let the mixture stand for 3 minutes, then mix again. Do not add water to a mixture that has begun to set! Apply only as much mixture to the surface to be tiled as can be covered with tiles within 30 minutes. Do not cover expansion joints with the mixture! The optimal temperature of the substrate and ambient air during application is +5°C to +25°C; avoid temperatures higher than +30°C and sub-zero temperatures.
• Fully load-bearing: after approximately 14 days
• Fire safety class: A1 (non-combustible)
• Shelf life: 12 months in original packaging
• Tile adhesive class: C2 TE (EN 12004, EN 1308, EN 1346)
• Tiled surface is walkable after approx. 24 hours
• Coverage with a 4 mm notched trowel: 1.6 kg/m²
• Coverage with a 6 mm notched trowel: 2.4 kg/m²
• Coverage with an 8 mm notched trowel: 3.1 kg/m²
• Coverage with a 10 mm notched trowel: 3.9 kg/m²