BenferFlex+S1 Grey Tile Adhesive 25kg - Pallet of 42 Boxes

Premium Highly Flexible Tile Grey Adhesive for Tiles and Stone

BENFERFLEX+S1 Grey is a high-performance, highly flexible adhesive designed for the installation of porcelain, ceramic, and natural stone tiles on walls and floors. Its advanced formulation provides excellent vertical slip resistance and a long open time, making it ideal for demanding applications on both interior and exterior surfaces.

The grey colour is well-suited to darker tiles and stone finishes, delivering a clean, professional result.

Supplied as a full pallet of 42 boxes (25kg each), this bulk option is ideal for large-scale projects, commercial installations, and professional installers requiring dependable performance and excellent value.

Why Choose BenferFlex+S1?

• Highly deformable and multi‑purpose flexible adhesive
• Excellent resistance to vertical slipping - ideal for top‑down tiling
• Long open time for ease of application
• Can be used as a flow‑bed adhesive with increased water content
• Suitable for interior and exterior walls and floors
• Dust‑reduced and easy to use
• Tested to EN 12004, CLASS C2 TE S1 for performance and quality

Areas of Application:

• Interior and exterior walls and floors
• Heavy‑duty areas
• In conjunction with waterproofing systems such as ACQUASHIELD
• Over existing wall and floor tiles

Compatible Substrates:

• Concrete
• Cement‑based screeds (standard or heated with water system)
• Cement‑based plaster
• Flexible waterproofing membranes (cement & polymers)
• Cement‑based blocks
• Old ceramic tiles (primer may be required)
• Standard or waterproof plasterboard
• Cement‑based and gypsum‑based boards (with appropriate primer)

Additional Substrate Options (Interior Use Only):

• Fluid cement‑based screeds (primer if demanded)
• Fluid anhydrite‑based screeds (primer required)
• Elastomeric waterproofing membranes

Recommended Maximum Tile Sizes:

• Interior floors: Tiles with the longest side up to 360cm
• Exterior floors: Tiles with the longest side up to 120cm
• Interior walls: Tiles with the longest side up to 360cm
• Exterior walls: Tiles with the longest side up to 90cm

For full technical details, download the BenferFlex+S1 Technical Sheet