The Polyfin Inner Corner PVC is a factory-formed internal waterproofing corner designed specifically for Polyfin waterproofing membrane systems. It is engineered for wall-to-floor junctions, internal corners and membrane upturns, providing a consistent and reliable waterproof transition without the need for complex on-site fabrication.

Manufactured for hot-air welding directly onto Polyfin membranes, the prefabricated corner helps minimise welding defects and leakage risks at critical internal junctions while reducing installation time and labour costs. Its factory-made construction delivers consistent quality and seamless integration with the complete Polyfin waterproofing membrane system, making it ideal for balconies, podiums, parapets, planter boxes, wet areas and other waterproof detailing applications.