0500 41 41 41
Cookie Reports - Screwfix Cookie Policy

No Nonsense

No Nonsense Central Heating Leak Sealer 310ml Concentrate

Product Code: 90485

310ml. Internal leak sealer for small inaccessible leaks and weeping joints which reduce system pressure. Effective within 24 hours. 1 tube treats 100 litres.

View more information

Download more information...

Safety Data Sheet (COSHH)

£14.49

INC.
VAT
£14.49
4.25 5 4

Add to saved list


Available for deliveryNext Day Delivery
Available for collection from store Store Collection Check stock in your store
Page 1 of 4
Page 1 of 4
No Nonsense Central Heating Leak Sealer 310ml Concentrate 4.3 5 4 4
miracles can happen easy to use,good easy instructions, fantastic repair, saved a fortune. 9 Jan 2013
Seems to have done the trick Used on towel rail in bathroom, where the valves always seem to leak from under the caps (it was definitely the spindles, rather than it trickling from elsewhere). Had already replaced valves twice, so needed another angle of attack. Used this stuff, and it appears to have worked a charm within a few hours. Word of advice - when using, I found I had to open both valves on the rad, rather than just one as indicated in the instructions. No way I could get it in with only 1 open. Also, on a tall towel rad like mine, I could really have done with a second pair of hands to open the valves while I kept the pressure on the trigger of caulking gun. Not an issue with product at all, just my own ergonomics. Used the 1/2" screw thread adaptor that came with product to administer straight into bleed valve at top of rad. Easy peasey. 8 Oct 2012
Old Heating System my mum had a new combi boiler fitted to her old heating system, pressure drop occurring regularly, installed via radiator blanking plug, turn off rad valves, removed blanking plug injected into rad, refitted plug. worked a treat my heating system now holding 1 bar within 1 week. 3 Oct 2011
Saved a major job... Does what it says... Tho makes it much easier if you use a double radiator - close both valves, then take out both bleed valves, it's then easy to inject. If you follow their instructions it will all squirt back out (or even blow the connectors off the tube). Was really not looking forward to going under the floor, etc, with this I didn't have to! 8 Mar 2011
1-4 of 4

Specification

Download more info (pdf)

Brand No Nonsense
Pack Size 1
Sealant Adhesive Volume 310 ml
Total Product Weight 0.35 kg