Leaking radiator advice please

[regsmyth]

Hi, I have been doing up a room, and I drained the system to take the radiator off. I bought new valves etc, and took off the old fittings, including the pieces that screw into each end of the radiator body.
When I screwed the new ends in, one of them didn't come tight and just screwed right into the radiator. I optimistically used lots of ptfe with some jet lube, but didn't have much faith.
Unfortunately having refilled and repressurised the system, this end is leaking.
Is there a trick or a product to sealing ends like this?

 

[neds]

Check the threads are not defected of split/cracked. If not give it another go with Loctite 55 thread seal. Wonderful stuff. Or since its heating some Boss white and hemp round the thread. Will never leak with that.

 

[regsmyth]

Ok thanks for the tip. I used some quick set epoxy "liquid metal" which is holding so far. Must remember that for next time.

 

[RUBICON52]

Ok thanks for the tip. I used some quick set epoxy "liquid metal" which is holding so far. Must remember that for next time.

You just might come to regret using that.

 

[bigpkr]

Never had to use anything else but ptfe and never will.

 

[RUBICON52]

Never had to use anything else but ptfe and never will.

Stopped using PTFE when I discovered Locktite 55.