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Sentinel Rapid Dose Leak Sealer 400ml

Product Code: 60012

Rated 4.4 out of 5 by 7 reviewers.

You Must Be Over 18 Years Of Age To Purchase This Product.

Sentinel Rapid-Dose Leak Sealer is for internal application to seal small leaks and weeping joints in all types of indirect heating systems. Soft seal normally formed within 24 hours, dependent on temperature and leakage rate. Suitable for use with all metals including aluminium. Compatible with elastomers.

  • Non-Toxic & Non-irritant
  • Compatible with Other Sentinel Rapid-Dose Products
  • High Stability & Readily Dispersible
  • Full Discharge in Approximately 30 Seconds
  • Does Not Block System
  • Rapid Product Addition to All Systems
  • Water Draw-off Not Required
  • System Cooling Not Required
  • Absolutely No Mess
  • View more information

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Safety Data Sheet (COSHH)

£20.99 (inc. 20% VAT)

4.4286 5 7

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Rated 5 out of 5 by Impressed Very impressed with this. Very clear instructions and surprised by the little rubber bean in the small folded up paper which is designed to acts as a one-way valve in the fill tube. Just put it in via the circuit fill valve. Simple and easy. Only just put in so dropped a star on reliability - too early to say but other review are good on this aspect. 2 Sep 2014
Rated 5 out of 5 by Amazing fix and so simple too After removing a radiator for decorating, 1 solder joint developed a dipping leak. This product fixed it in minutes as opposed to stripping down the whole section of pipework. The pressure "dosing system" worked without a hitch, putting the product into a fully working and pressurised 9 rad combi based heating system. The clever no return valve and coupling adapter is a brilliant bit of design. Be careful to read all the instructions which are scattered around the tin and 2 sides of an enclosed paper. If you don't open and close valves in exactly the right order, the pressurised system will squirt at you ! The drip stopped soon after the system warmed up. Great product 30 Apr 2014
Rated 5 out of 5 by Leaking joints Bought this as I had some leaking joints and really didn't want to undo and drain the system. A bit fiddly and not too clear on how to use, removing the bleed valve and filling that way is messy as you pressurise the rad and when removing the pipe from the can it squirts out until you get the bleed valve back in, messy but is do-able. Fitted bleed valve within ten minutes drips had stop, easy and cheap. 25 Feb 2014
Rated 5 out of 5 by Simple I found this easier to use than leak sealers that use a cartridge and gun but it still suffers from the same problem in that when you disconnect you always get some of the gunk blow back out of the vent. Very messy and hard to clear up. It took 2 days after use to seal the system and there has been no problem since. 18 Nov 2013
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Brand Sentinel
Manufacturing Standards Manufactured to ISO 9001 and ISO 14001
Pack Size 1
Sealant Adhesive Volume 400 ml
Total Product Weight 533 kg