Waterproofing sleeve for internal corner 140x140mm Knauf

Knauf internal corner waterproofing cuff 140x140mm is a professional waterproofing accessory used to reinforce water protection in internal corners of bathrooms, sanitary areas, kitchens, balconies, and other wet zones. The product helps create a more stable and durable waterproofing layer at wall-floor and wall-wall joints, especially in corner areas exposed to moisture. The 140x140 mm size allows convenient placement and neat application in internal corner sections.

When used together with waterproofing materials, the cuff helps reduce the risk of cracks, gaps, and moisture penetration in corner areas. Compatible with Knauf waterproofing systems, it supports reliable results in under-tile insulation, renovation, and professional construction projects.