Sentinel Internal Leak Sealer 1 Litre

Sentinel Internal Leak Sealer 1 Litre


Product Code: 7128160

Ex Tax: £9.51

Sentinel Internal Leak Sealer 1 Litre

  • Manufactured under a quality system conforming to ISO9001.
  • Will not cause blockages within the system.
  • Compatible with other Sentinel products.
  • Easy to apply.
  • Suitable for all metals including aluminium.
  • Compatible with elastomers.
  • Non-toxic and non-irritant.
  • High stability.
  • Readily dispersible.
  • Sentinel Leak Sealer Data Sheet.

Sentinel Leak Sealer is for internal application to seal small leaks and weeping joints in all types of indirect heating systems including those containing aluminium components. A soft seal is formed, normally within 24 hours, but dependent on the rate of leakage and the temperature.


Sentinel Leak Sealer should be dosed at 1% of the system volume, i.e., 1 litre per 100 litres of system water.

After dosing is complete, the system should be operated normally for at least 15 minutes - heat is beneficial.