An effective leak sealer for sealing inaccessible leaks and weeping joints in a sealed central heating system. The use of RADLEAK can help avoid costly repairs and It will not block the pump, valve, or air vents.

-Suitable for reducing pressure loss from sealed systems.
-Will not cause the pump or air vent blockages.
-Suitable for multi-metal systems, including those containing aluminium.
-Non-hazardous, non-flammable, and non-irritant.
-High stability, compatible with elastomers.
-Readily dispersible.

Application:
Introduce via the feed and expansion tank. Shake the bottle well before use and use the entire contents. Tie up ball valve in feed and expansion tank. Turn the boiler off and locate drain down cock. Attach a hose to the drain cock and remove approx 10 litres of system water. Close off drain cock. Empty PC500 Radleak into the header tank. Untie the ball valve and turn the boiler on. Vent the system as necessary to eleviate any trapped air. A soft seal will form over 24 hours, this will not cause any blockages in the system. Full effect will be achieved within 1-6 weeks.

Box of 10.