Sentinel Internal System Leak Sealer 1L

Small pressure drops in combi boilers often stem from hidden leaks, micro-cracks, or pinholes in underfloor piping. Sentinel Internal System Leak Sealer flows easily through the system, locating and sealing inaccessible leaks with a flexible, durable seal upon contact with external air. Unlike inferior sealants that solidify and block heat exchangers, TRVs, or pumps, Sentinel's advanced soft-seal remains fully fluid, activating only at leaks to prevent system seizure and ensure smooth operation. Seals all minor leaks Will not cause blockages within the system Readily dispersible Compatible with elastomers Manufactured under a quality system conforming to ISO9001 Easy to apply Compatible with other Sentinel products Suitable for all metals including aluminium Non-toxic and non-irritant