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Fernox Jointing Compound 400g (21548)

For use with hot and cold drinking water.

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Fernox Jointing Compound 400g is rated 4.7 out of 5 by 43.
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Rated 5 out of 5 by from Great jointing compound This stuff is excellent. Always use on compression joints and never have any leaks.
Date published: 2017-08-09
Rated 5 out of 5 by from Handy stuff My neighbor recently told me about this and it works really well. Used it to seal round new valves and olives being put on a new radiator in my spare room and it done a first class job, no leaks whatsoever. First class.
Date published: 2016-12-31
Rated 5 out of 5 by from FERNOX jointing compound Read the reviews and thought I would try it Well don't think I'll be going back to the old PTFE VERY HAPPY
Date published: 2016-11-19
Rated 5 out of 5 by from jointing compound Just fitted new shower on old compression joints. soon stopped the leak i had using Fernox jointing compound. also helped getting old joint together as lubricant on threads. fantastic product, this will replace my old dried up boss white compound.
Date published: 2016-11-08
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Does Water Hawk harden or remain soft? Thanks

Asked by: dcccd
Hello Dcccd. Water Hawk will remain soft after application. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-07-23

How long does it take to set? I left for 3 hours on a hot water cylinder and it leaked immediately when I turned the water back on.

Asked by: Robin66
Hello Robin66. There is not 'Setting' time for this product, however depending on which joint you have used this on, it may be the wrong application for this product. Please can you call our technical team on 0330 100 7750 to discuss this issue. Thanks.
Answered by: Fernox Client Services
Date published: 2017-07-15

Hi. Can it be used on plastic pipes?

Asked by: Kociol
Hello Kociol. We can't recommend using a jointing compound on plastic pipes. If you have a leak perhaps LS-X would be better. Please can you call our technical team on 0330 100 7750 to discuss what you need this for and they will be able to advise you.
Answered by: Fernox Client Services
Date published: 2017-07-08

Use on radiator tail valves with ptfe

Hi can this be used with radiator tail valves along with PTFE? I've read that some people use both. Basically don't want to risk any leaks! Also does this harden?
Asked by: Pauljay
Hello Pauljay. This can be used on a radiator tail valve, although it might be easier to use Fernox LS-X External Leak Sealer. The Joint compound will harden, but only after several months. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-04-15

Whats the difference between this & the white

Whats the difference between Ferox Hawk White Jointing Compound 400g (69694) £4.29 Ferox Jointin Compound 400g (21548) £6.19 Need to seal a leak between toilet cistern & pan.
Asked by: iansconfused
Hello Ianconfused. The Main difference between Fernox Hawk White and Fernox Water Hawk is that Water Hawk (21548) can be used with potable (drinking) water, as it will not support any microbial growth, whereas Hawk White is used for non-potable water. Hope this Helps.
Answered by: Fernox Client Services
Date published: 2017-06-28
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Specification
Brand Fernox
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Type Jointing Compound
Total Product Weight 400 kg
Volume 400 g

Downloads

Safety Data Sheet (COSHH)