Leak Sealer F4 500ml Brillant White All surfaces to be coated

All surfaces to be coated should be clean

Protects against paint spillage

With a reversible bi-directional body this thermostatic radiator valve is suitable for either horizontal or vertical installation

10mm wide X 25mm cutting depth with bottom cut feature for increased diversity including medium duty shallow morticing

Leak Sealer F4 500ml Brillant White All surfaces to be coatedLeak Sealer F4 is a internal leak sealer developed for use throughout a central heating system to seal small, inaccessible leaks and weeps which may cause pressure loss and boiler breakdown. Once dispersed within the system, the product finds the area of oxygen ingress and forms a polymer to seal the pinhole. Effective within 1 24 hours after application, the unique sealing efficiency of this market leading water treatment chemical has been proven to