Kerdi Flex - Waterproof Joint Strip

Kerdi Flex – Waterproof Joint O-Ring (walls, steps, joints, cracks)

Schlüter-KERDI-FLEX is a highly flexible waterproofing strip designed for sealing movement and perimeter joints in waterproofing systems. Its flexible polyethylene structure, coated on both sides with a special geotextile, allows its adaptation to areas with structural deformations and differential movements, ensuring a durable and resistant waterproof barrier.

It is used in combination with Schlüter-KERDI, KERDI-KEBA and KERDI-COLL, ensuring continuous protection in critical areas such as swimming pools, bathrooms, terraces and industrial areas with high humidity.

Main Uses

• Sealing of movement joints in walls and floors.
• Waterproofing of flexible perimeter o-rings.
• Protection against structural cracks in ceramic coverings.
• Use in swimming pools, spas, terraces and balconies exposed to thermal expansion.
• Application in industrial areas with constant humidity.

Technical Characteristics

• Material: Highly flexible polyethylene with geotextile on both sides.
• Thickness: 0.3 mm.
• Available widths: 12.5 cm and 25 cm.
• Roll length: 5 m and 30 m.
• High tensile strength and deformation resistance.
• Compatible with waterproof adhesives such as Schlüter-KERDI-COLL.
• ETA certification and CE marking, complying with DIN 18534 and DIN 18535 standards.

Advantages

✅ High elasticity for expansion joints.
✅ Total waterproofing in critical areas.
✅ Prevents cracks and leaks in moving structures.
✅ Easy installation with KERDI-COLL adhesive.
✅ Compatible with Schlüter-KERDI and Schlüter-DITRA systems.

Installation Mode

1. Prepare the surface making sure it is clean and free of dust.
2. Apply Schlüter-KERDI-COLL waterproof adhesive to the o-ring or overlap.
3. Place the KERDI-FLEX band ensuring a uniform distribution of the adhesive.
4. Press firmly to eliminate air bubbles and improve Floor anchor.
5. Wait for the tile to dry before tile installation.

Recommended Applications

✔ Pools and spas: waterproofing of structural joints.
✔ Bathrooms and Shower: Sealing perimeter joints.
Industrial areas: Protection in areas with high humidity.
Terraces and balconies: Prevention of cracks in o-rings subjected to thermal expansions.

Complementary Accessories

• Schlüter-KERDI: Waterproofing sheet for swimming pools and other wet areas.
• Schlüter-KERDI-KEBA: Kerdi-laminate overlap strip
• Schlüter-KERDI-COLL: Adhesive for Kerdi Range
• Schlüter-KERDI-DS: Version with increased steam resistance for industrial environments and swimming pools.
• Schlüter-KERDI-DRAIN and KERDI-LINE: Compatible drainage systems.