Kerakoll Setaflex Semi Rapid S1 Tile Adhesive Grey 20kg

£11.64 ex VAT - £13.97 inc VAT

Deformable (S1 tested) for enhanced flexibility and durability.
Suitable for underfloor heating systems, ensuring comprehensive adhesion.
Extended pot-life of 90-120 minutes for convenient application.
Versatile for floors and walls, both internal and external use.
Eco-friendly, with low VOC emissions and recyclable materials.

Availability: 246 in stock (if you need more get in touch and we will let you know how fast we can deliver)

SKU: KERK82454 Categories: , , , ,

Kerakoll Setaflex Semi Rapid S1 Tile Adhesive Grey 20kg is a high-performance, semi-rapid setting adhesive designed for professional tiling projects. This premium adhesive is ideal for various tiles including porcelain, ceramic, and natural stone. Tested to S1 standards, its deformable nature ensures superior flexibility and durability, making it suitable for both residential and commercial applications.

Engineered to work seamlessly with underfloor heating systems, Setaflex Semi Rapid S1 provides exceptional adhesion even under fluctuating temperatures. The extended pot-life of 90-120 minutes offers the flexibility needed for precise applications, making it perfect for larger and more complex projects.

This versatile adhesive can be used on a wide range of substrates including existing tiles, waterproofing products, heating systems, cement-based screeds, concrete substrates, plasterboard, fibro-cement slabs, gypsum and anhydrite, brick/blockwork, lime and cement-based plasters/renders, thermal insulation panelling systems, insulating panels, impact noise insulation sheets, timber, metal, and PVC. This broad compatibility ensures it meets the diverse needs of various tiling challenges.

Kerakoll Setaflex Semi Rapid S1 is suitable for multiple materials such as porcelain tiles, low thickness slabs, ceramic tiles, large size tiles, natural stone, recomposed materials, glass mosaics, thermal and acoustic insulation, terracotta, and klinker. This makes it an excellent choice for a wide range of projects, from standard installations to intricate designs involving different materials.

Designed for both internal and external use, this adhesive is perfect for overlaying, terraces, balconies, swimming pools, saunas, spas, and even street furniture. Its robust formulation ensures it can withstand different environments, whether it’s a high-traffic commercial area or a serene residential space.

For eco-conscious builders, Setaflex Semi Rapid S1 is an excellent choice. It boasts low VOC emissions and is made from recyclable materials, aligning with modern sustainability standards. This adhesive also conforms to BS EN 12004 standards, ensuring high performance and safety.

Preparation and application are straightforward. The substrate must comply with BS 5385 parts 1-5, ensuring it is level, cured, undamaged, compact, rigid, dry, and free from any debonding agents. For highly absorbent concrete substrates, it is recommended to dampen them or apply a coat of Primer A Eco. The adhesive should be mixed with water as per the guidelines to achieve the desired consistency for application.

Kerakoll Setaflex Semi Rapid S1 guarantees superior adhesion, even in challenging conditions like heat ageing, water immersion, and freeze-thaw cycles. It performs reliably with a shear adhesion of ? 2.5 N/mm² for porcelain tiles after 28 days and a tensile adhesion of ? 2.5 N/mm² for concrete and porcelain tiles. The adhesive’s working temperature range is from -40 °C to +90 °C, ensuring versatility in various climates and conditions.

Overall, Kerakoll Setaflex Semi Rapid S1 Tile Adhesive Grey 20kg is a comprehensive, high-performance solution for all your tiling needs, providing durability, flexibility, and eco-friendliness.

Weight 20 kg


Manufacturers Code


Adhesive Type

C2 Improved Adhesive, E Extended Opening Time, S1 Flexible Adhesive, T Slip Resistant

Setting Time



External, Floor, Internal, Wall




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Kerakoll Setaflex Semi Rapid S1 Tile Adhesive Grey 20kgKerakoll Setaflex Semi Rapid S1 Tile Adhesive Grey 20kg
£11.64 ex VAT - £13.97 inc VAT

Availability: 246 in stock (if you need more get in touch and we will let you know how fast we can deliver)