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Sentinel Internal Leak Sealer 1Ltr (99730)

Internal Leak Sealer for small inaccessible leaks and weeping joints in all types of indirect heating systems including those containing aluminium components. Compatible with elastomers.

  • 1 Year Manufacturer's Guarantee

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£13.99INC VAT (£13.99/Ltr)

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Rated 4.8 out of 5 by 25 reviewers.
  • 2016-09-29 T10:37:32.810-05:00
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Rated 5 out of 5 by Sentinel Leak Sealer I have used this product for over 12 years. The condition of Systems is always clean and corrosion free. The price at Screwfix is excellent. 24 Sep 2016
Rated 5 out of 5 by Great Very good product I really recommend it, work on the first time really great good nice brilliant smells nice !!!!!!!!!!! 18 Apr 2016
Rated 5 out of 5 by Sealed the leak Using this marked the end of a 2 month search for a leak that couldn't be found. The noise coming from the central heating pump has changed noticeably since adding this but I cannot comment on whether this is a good or bad thing... something to keep monitoring I think. 5 Apr 2016
Rated 5 out of 5 by Brilliant Had a mystery leak somewhere under floor that could not be detected, leading to regular pressure drops and topping up of system on a daily basis. I thought I'd give this product a try before ripping the entire flooring up and hey presto it worked! I poured it into the system through the top of the bathroom towel rail as this was easy access, turned on the boiler for a short while as per the instructions and that was it. Several months later still no problems and pressure is constant. One of the best products I've used, highly recommended. 29 Feb 2016
  • 2016-09-29 T10:37:32.810-05:00
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  • loc_en_US, sid_99730, prod, sort_default
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6 Questions  7 Answers

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25 Sep 2016
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Nottingham
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Answer: 
Hi there,
The Sentinel Leak Sealer is compatible with the Sentinel X100.
Kind regards
Customer Service
27 Sep 2016
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20 Jul 2016
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Alloa,Scotland
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, Plumbing/Heating Engineer
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Answer: 
Is this product safe with barrier pipe and plastic syestems such as HEP 20
7 Aug 2016
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High Wycombe
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Answer: 
Hi there, the Sentinel Leak Sealer is safe with barrier pipe and plastic systems such as HEP20.
Kind regards
Customer Service
22 Jul 2016
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I have a leaking toilet cistern which is inaccessible (the bathroom units were built around the loo) so I can't get to the leak without causing expensive carnage. Can I use this in a plastic cistern with a slow leak?
13 Jul 2016
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Southampton
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Answer: 
Hi there, unfortunately the Sentinel Leak Sealer is not suitable for this application.
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Customer Service
14 Jul 2016
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Hello,

Is this safe for use with Combi boilers?

Thanks!
14 Mar 2016
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Manchester
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Answer: 
Hi there, all Sentinel chemicals are safe to use on Combi boilers.
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Customer Service
15 Mar 2016
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Hello,

How many litres of water will the 1L treat?

Thanks
14 Mar 2016
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Manchester
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Answer: 
Hi there, 1 litre of Sentinel Leak Sealer is sufficient enough to treat a typical domestic system of 8 to 10 radiator panels. Large systems should be dosed with 2 litres.
Kind regards
Customer Service
15 Mar 2016
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  • 2016-09-29 T10:35:13.157-05:00
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Specification
Brand Sentinel
Manufacturer Guarantee 1 Year Manufacturer's Guarantee
Manufacturer Guarantee 1 Year Manufacturer's Guarantee
Pack Size 1
Pieces in Pack/Case 1
Pieces in Pack/Case 1
Product Type Internal Leak Sealer
Sealant Adhesive Volume 1 Ltr

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Safety Data Sheet (COSHH)