External leak sealer and jointing compound ideal for sealing low-pressure leaks and weeping joints quickly and easily. Provides seal without setting hard, allowing joints to be undone later. Easy to apply and clean up. Suitable for compression and screw...

Silicone paste used as an external leak sealer and jointing compound. 1 Year Guarantee Suitable for Compression Joints & Screw Fittings For External Use

Disperses sludge, limescale and system debris. Suitable for mixed metal systems, including aluminium. Restores circulation and improves heating efficiency. After cleaning and flushing an inhibitor should be used. Compatible with No Nonsense products....

Internal leak sealer for small, inaccessible leaks and weeping joints which reduce system pressure. Effective within 24 hours. Suitable for mixed metal systems, including aluminium. Does not cause blockages in circulator pumps or air vents. 500ml treats...

Apply to existing systems for the removal of sludge and deposits. Iron oxide is broken down and dispersed through flushing. Removes Sludge Breaks Down Iron Oxide

For use in domestic heating systems for sealing small inaccessible leaks. Quick and convenient, doses in only 30 seconds. Works best in warm / hot circulating water. Once dispersed evenly in the system water it is effective within 1-24 hours. The sealing...

Effective, universal pH neutral, non-foaming liquid cleaner, which removes sludge, scale and debris from existing central heating systems to restore heating efficiency and eliminate boiler noise. Quick and easy to remove from the system, saving time on-site....

Internal leak sealer developed for use throughout a central heating system to seal microscopic, inaccessible leaks and weeps which may cause pressure loss and boiler breakdown. Saves time and money on draining down the system and repair costs. Does not...

Chemical technology that reduces circulation time to just one hour to minimise time on site. Targeted dissolution of corrosion debris that restores system circulation, reducing future breakdowns and increasing system life. Works in cold and distressed...

Removes debris, scale and sludge. Restores heating efficency, reducing heating and maintenance bills. Works one hour after application. Can be left in the system for up to 28 days. Suitable for all heating systems. Treats 100 Litres (up to 10 standard...