FER-56603 | Leak Sealer F4 (liquid) 500ml Brand:Fernox circulate the product (preferably at

circulate the product (preferably at normal operating temperature

The unique formula is designed to prevent corrosion and limescale buildup

including those with non ferrous metals

Designed to provide a sturdy and waterproof foundation for tiles

- Ideal for powerflushing

FER-56603 | Leak Sealer F4 (liquid) 500ml Brand:Fernox circulate the product (preferably atEasy to use formula: Fernox F4 Leak Sealer is designed for quick and hassle free application. It comes as a ready to use liquid that doesn't require any additional mixing or preparation, making it convenient for homeowners and professionals alike. Effective sealing performance: This high quality leak sealer is engineered to efficiently and reliably seal small, inaccessible leaks and weeping joints in hydronic heating systems. Its advanced formulation