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No Nonsense External Leak Sealer 50g (35632)

50g. For all types of joints and fittings and ideal for temporary repairs. Cures in 1 hour. Adheres to most wet or dry surfaces. Doesn't shrink and remains flexible, allowing seal to be undone. Operating temperature -40°C to ±200°C.

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£1.79INC VAT (£35.80/Kg)
Was £2.99 Save £1.20 (40%)

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Rated 3.4 out of 5 by 19 reviewers.
  • 2016-05-28 T11:34:11.077-05:00
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Rated 3 out of 5 by No nonsense leak sealant Doesn't seal external leaks. Looks like it is only for fittings. Don't know why it is called external. 12 Apr 2016
Rated 1 out of 5 by Doesn't stop leaks This isn't a great product. Had a leaking radiator tail, and this doesn't stick the the radiator enamel very well and thus didn't stop the leak. Removed the dried silicone to try again, and the whole tube had gone off in 3 hours despite me putting the lid back on.. Pity, because normally no nonsense stuff is great. You're better off buying a tube of normal sealant! 8 Dec 2015
Rated 1 out of 5 by Nothing more than silicone The product is simply a small tube of silicone sealant and should be advertised as such, no better no worse but don't expect much from it 23 Jul 2015
Rated 5 out of 5 by No Nonsense External Leak Seal Great buy, almost half the price of other branded products. It worked really well when dealing with a radiator header tank. It was no where near as smelly as other brands and when working in a closed in roof space with no ventilation this proved a real bonus. It was also easier to apply and tool than other products. Will definitely buy and use again. Have give 3 start for reliability as I have only just put it on, otherwise a 5 star product. 2 Mar 2015
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3 Questions  2 Answers

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We have a wooden summerhouse (8'x8') that despite all attempts we cannot make watertight.
Would this product work for that?
Would we be able to spray/apply it over all of the external walls, corners etc to stop water ingress?
Is this better than "No Nonsense Water Repellent Seal Clear 5Ltr" or would that be a better product for us to use?
If we used it would we still be able to apply wood-stain?
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11 Mar 2016
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Porth
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1 Answer

Sealing doors

There is a leak on one of my UPVC doors. I intend to spray the outside with this, to see if it will stop water coming in. Will this work?
17 Jan 2016
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Epsom
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Answer: 
This product is not a spray; its intended use is as a plumbing product to seal leaks in pipe work. It's unlikely to work for your intended use.
18 Jan 2016
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I need to perform and emergency repair on a flat roof. Given the rain we have had recently it is unlikely that I will be able to wait until the weather clears. Can this stuff be ap;plied to a wet surface and does it have to be dry to cure?
4 Jan 2016
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Dundee
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Answer: 
This product should be applied to a dry surface however once applied wetness to the external sealant will actually speed the cure.
5 Jan 2016
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  • 2016-05-28 T11:31:08.573-05:00
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Specification
Brand No Nonsense
Pack Size 1
Pieces in Pack/Case 1
Product Type External Leak Sealer
Sealant Adhesive Volume 50 g
Total Product Weight 0.07 kg

Operating temperature -40 to 200°C.

Downloads

Safety Data Sheet (COSHH)