Schluter Kereck/FI2 Kerdi Inside Corner – 4 Mil, Seamless Waterproofing, 2-Pack

Schluter Kereck FI2 Inside Corner

The Schluter Kereck FI2 inside corner is a preformed, seamless corner piece crafted from the durable KERDI material used across Schluter’s waterproofing systems. This 2-pack is designed to create clean, nearly invisible junctions where walls meet corners inside showers, tub surrounds, or wet rooms, helping you achieve a consistent waterproofing envelope without awkward caulk lines.

Designed for long-lasting performance

With a 4-mil thickness, these corners stay slim while resisting buildup at the seams. The included material blends with Schluter membranes, creating a continuous barrier that supports reliable drainage and reduced maintenance over time.

• Seamless design for a tight, continuous edge at inside corners.
• 4-mil thickness minimizes corner buildup while preserving a sleek profile.
• Versatile compatibility with KERDI, KERDI-BOARD, DITRA, and DITRA-HEAT systems.
• Easy installation to save time on waterproofing tasks.
• 10-year limited warranty when installed following Schluter’s Installation Handbook and Technical Data Sheet.

Practical applications and scenarios

Use these inside corners in showers, steam rooms, and wet-room corners to maintain a uniform look with other Schluter components. The seamless joints help create a consistent waterproofing envelope across vertical and horizontal transitions.

• Ideal for shower alcoves, tub surrounds, and wet zones inside rooms.
• Supports a cohesive system when paired with Kerdi membrane, boards, and Ditra membranes.
• Suitable for projects prioritizing clean lines and low-maintenance upkeep.

Installation tips and warranty essentials

Prepare the substrate per Schluter guidelines, ensure a clean, dry surface, and follow the standard membrane integration steps. Align the corner with surrounding panels, press firmly, and cure as directed. A 10-year warranty applies when guidelines are followed.