• Welcome to PlumbersForums.net - The international free plumbing advice forum. Professional plumbers sharing advice with fellow plumbers and DIY alike. Register for free today! - Checkout the Plumbing Advice forum and then our Plumbing Videos area which still needs populating.

Discuss Loctite 577 on radiator tails in the DIY Plumbing Forum area at PlumbersForums.net

kristianB

Messages
2
The tails don’t fully tighten, if you screw them in too far they just end up inside the radiator. So after removing them and the ptfe I applied loctite and screwed them in again but they are not mega tight. Hoping the loctite creates a watertight seal



Just fitting TRV to a 3 year old column radiator which required changing the tail from old style which requires you to tighten it from inside with large Allen key and you can tighten as per normal to a new tail has a square shaft allowing you to tighten from outside but as OP said the radiator has no end stop and the tail has no collar or end of thread so you can't tighten fully, so it leaks. About to try even more ptfe tape.
 

Harvest Fields

Plumber
Gas Engineer
Messages
10,435
I only use loctite on rad tails now. Never have an issue. (Fingers crossed)
 

kristianB

Messages
2
Finally got it to seal - ptfe paste to fill the thread and then ptfe tape on top to kind of hold the paste in place. Loads of ptfe tape would have also worked I'm guessing but I hadn't much tape left.

It still feels like a bodge as I'm sure professional plumbers don't do it like this.

I'd emailed the place where I'd bought the radiator from saying how do I get a good seal and they just sent me a new radiator.
 

Reply to Loctite 577 on radiator tails in the DIY Plumbing Forum area at PlumbersForums.net

Similar threads

C
https://www.screwfix.com/p/fernox-ls-x-leak-sealer-50ml/23614?kpid=23614&cm_mmc=Google-_-Datafeed-_-Heating%20and%20Plumbing&ds_kid=437000630075134...
Replies
6
Views
424
R
M
Replies
9
Views
322
ChrisB1982
ChrisB1982
Bogart
Many thanks. I really appreciate all the help I get here. A Merry Christmas to you all.
Replies
4
Views
1K
Bogart
Bogart
Bogart
Replies
11
Views
1K
Bogart
Bogart
Bogart
If there's a bit of flex in the pipes, you can often wiggle one off the valve, or unscrew the tail from the radiator. Or remove the valve from...
Replies
10
Views
2K
Ric2013
R
Creating content since 2001. Untold Media is a Registered Trademark.

Newest Threads (Please Reply)

Search Forum

Top