Tile adhesive mortar FASTGEL® S1+

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Product overview
Elastic, anti-crack tile adhesive based on a hydro-curing tri-polymer gel. FastGel® S1+ offers accelerated adhesion and rapid setting through dual-kinetic curing. Formulated with Fluidotixo® Anti-Fatigue compound reinforced with quartz microspheres and a low cement content (<25%), it prevents cracks and stains when installing tiles, porcelain stoneware, large-format slabs and natural stone, indoors and outdoors. The creamy, thixotropic fluidity ensures reliable application and shape retention on floors and walls with complete wetting performance.

Key performance

• Accelerated adhesion and rapid setting (dual kinetic curing combining mineral hydration and polymer cross-linking)
• Walkable after 3 hours; ready for service after 12 hours
• Double pot life: workability > 60 minutes; reactivatable by mechanical mixing
• Extended open time: > 45 minutes
• Double vertical slip resistance: T (T)
• Prevents staining on moisture-sensitive marbles and natural stones

Technologies & systems

• Powered by Fast Control® (dual-kinetic curing) and Crack Prevention® technologies
• Fluidotixo® Anti-Fatigue Compound (thixotropic, ultra-smooth, lightweight)
• Co-engineered with SafetyGel® to form the High-Adhesion Anti-Crack TileSafe® System

Applications

• Laying ceramic tiles, porcelain stoneware of all types and sizes, large-format slabs and natural stone
• Indoor and outdoor installations
• Overlays on existing floors
• Underfloor heating systems
• Balconies, terraces and street furniture subject to temperature changes, moisture and mechanical stress

Advantages

• Fast Control® technology ensures accelerated adhesion and rapid setting through engineered dual-kinetic curing
• TileSafe® System (SafetyGel® + FastGel® S1+): protects tiles from compressive and tensile forces
• Double pot life for extended workability and on-site reactivation by mixing
• Fluidotixo® Anti-Fatigue provides very fluid yet shape-stable application without slumping

Regulatory & classification
Classified as C2FTE S1 – EN 12004. International patent applications filed (see product documentation).

Technical specifications

• Brand: Litokol
• Commercial name (model): FastGel® S1+
• Product type: Elastic anti-fracture hydro-curing tri-polymer gel (low-cement)
• Cement content: <25%
• Reinforcement: quartz microspheres
• Grouting time: 3 hours
• Ready for use / service: 12 hours
• Coverage: 2.5–5 kg/m²
• Pot life: > 60 minutes (double pot life; reactivatable by mechanical mixing)
• Open time: > 45 minutes
• Slip resistance: Double vertical slip resistance T (T)
• Classification: C2FTE S1 – EN 12004
• Main technologies: Fast Control®, Crack Prevention®, Fluidotixo® Anti-Fatigue
• Designed uses: tiles, porcelain stoneware, large-format slabs, marble and natural stone; indoor and outdoor; overlays; underfloor heating; balconies and terraces
• Patents: international patent applications filed (product and TileSafe® System)