• 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

mitchino

Messages
76
Fitted a towel radiator today, I ptfe taped the radiator tails, and after installation noticed the tails were leaking a tiny amount. So de-fitted, and smeared loctite 577 on the radiator tail threads. Reassembled, refitted and now wondering how long I have to wait until pressurising the system. It's only a 1 bar radiator circuit, do I have to wait 24 hours?
 

SimonG

Esteemed
Plumber
Messages
20,778
What's it say on the instructions. I just use ptfe and paste, can pressurise immediately.
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
Messages
32,385
Solutions
3
Did you get the fitting tight or was it easy to put in
 

mitchino

Messages
76
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
 

oz-plumber

Esteemed
Plumber
Messages
3,134
If that's the case of rad tails screwing through the threads into the towel rail, I would question the company you bought it from.use

I personally don't like using paste sealants, and have had a few issues when joining dissimilar metals.
eg.. Brass and steel.

If I don't feel confident with a join, I wouldn't leave it
 

mitchino

Messages
76
Spoke to soon, found new leak on one side, so stripped down and removed cured loctite 577, wound threads with a lot of ptfe, like 15 times round, and that seems to have finally done the trick. The radiator wouldn't get hot at first though, so now I'm enjoying a crash course in balancing, initial experiments have at least got heat to the thing.
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
Messages
32,385
Solutions
3
Yea ptfe normally requires anywhere from 15-22 wraps these days
 

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