At wits end with cast iron rad

[Riley]

Hi chaps

i hope someone can impart a bit of advice to me.

Spent all all morning trying to fit a cast iron rad. All corners nicely sealed except one which has a very very slow drip. Have tried compounds, ptfes, lsx etc has anyone else got any ideas as it's driving me nuts.

Thanks as ever

matt

 

[IDCHAPPY]

Locktite threadtape?

 

[Gray0689]

Ptfe maybe

 

[CXR100]

hemp and boss white!! worked for me before!

 

[CXR100]

or even gas ptfe! thats a bit thicker, cany you get it in white, as yellow would look awfull!

 

[Irish]

2nd for hemp and boss white !

 

[CXR100]

remember fitting a towel rail before and one of the tails were leaking, just plain box standard towel rail with standard angled valves, nothing fancy, but not cheap quality, i tried everything , was told to try hemp and boss white and suprisingly it worked!

 

[IDCHAPPY]

I remember when al i used was hemp and boss white on screwed steel pipework on site... them were the days

 

[Irish]

I remember when al i used was hemp and boss white on screwed steel pipework on site... them were the days

Yeah get home stinking of linseed oil and every clown asking you have you been doing some glazing today

 

[Gray0689]

I remember when al i used was hemp and boss white on screwed steel pipework on site... them were the days

Still use it don't you

 

[Chalked]

Another hemp and paste here.first paste for me then a thin strand of hemp wound on the same direction as you would ptfe, starting from the end of the thread..

 

[Best]

Boss white for rad tails is the best & will often seal after hot water heats it.
If you have very few threads - ptfe is not great. I agree that hemp (flax, as I call it) makes a garanteed seal, but I hate that it seizes rock solid.

 

[Ermintrude]

Locktight. 55 and a smudge of jet blue for luck

 

[Best]

Locktight. 55 and a smudge of jet blue for luck

I normally would say Jet Lube or Jet Blue, but i bet ordinary Boss White paste is king for sealing heating threaded joints. It oozes oil out of it when very hot & seals a still leaking joint later, I have seen.

 

[Riley]

Thank you all of you. Really appreciate it. Got a couple more ideas there to try. Merry Xmas all