Browse store

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.

More Info

£13.99INC VAT (£13.99/Ltr)

Add to basket for...

Rated 4.8 out of 5 by 24 reviewers.
  • 2016-06-30 T13:27:49.616-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_24, tr_24
  • loc_en_US, sid_99730, prod, sort_default

Add to saved list...

Save
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
Rated 5 out of 5 by Easy to use and works! Had a small leak somewhere inaccessable, so drained the system a bit, poured into top of bathroom towel rail (highest point), refilled and bingo. No leak. 23 Jan 2016
  • 2016-06-30 T13:27:49.616-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_24, tr_24
  • loc_en_US, sid_99730, prod, sort_default
Page : 2 next>
3 Questions  3 Answers

Screwfix Q&A

Ask your questions. Share your answers.

 
 
« Back
 
 
Search:
Sort by:
Hello,

Is this safe for use with Combi boilers?

Thanks!
14 Mar 2016
Customer avatar
by
Manchester
Read all my Q&A
, Other Trade
+2points
2out of 2found this question helpful.
Was this helpful?Yes2No0

Answers

Answer: 
Hi there, all Sentinel chemicals are safe to use on Combi boilers.
Kind regards
Customer Service
15 Mar 2016
+2points
2of 2found this answer helpful.
Was this helpful?Yes2No0
Hello,

How many litres of water will the 1L treat?

Thanks
14 Mar 2016
Customer avatar
by
Manchester
Read all my Q&A
, Other Trade
+2points
2out of 2found this question helpful.
Was this helpful?Yes2No0

Answers

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
0points
0of 0found this answer helpful.
Was this helpful?Yes0No0
8 Sep 2015
Customer avatar
by
Dublin
Read all my Q&A
, DIY
-2points
0out of 2found this question helpful.
Was this helpful?Yes0No2

Answers

Answer: 
Hi there, Sentinel Leak Sealer can be added to the system in a number of ways. For open vented systems, dose via the expansion tank during the final fill. For empty sealed systems, add to any convenient point before filling. For full sealed systems, use a Sentinel Dosing vessel to inject via the filling loop or other access point. Sentinel Leak Sealer is also available in Rapid-Dose format
Kind regards
Customer Service
9 Sep 2015
+3points
3of 3found this answer helpful.
Was this helpful?Yes3No0
1 of 1
  • 2016-06-30 T13:25:00.188-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_99730, prod, sort_default
1 of 1
Specification
Brand Sentinel
Colour White
Manufacturer Guarantee 1 years
Pack Size 1
Pieces in Pack/Case 1
Product Type Internal Leak Sealer
Sealant Adhesive Volume 1 Ltr
Total Product Weight 1073 kg

Downloads

Safety Data Sheet (COSHH)