Hairline crack in Traditional old radiators

[ScarletPimpernel]

Ref: hairline crack in Traditional old radiators
Look at this picture: don't really need to say much more.

http://www.scarlet-design.co.uk/myfiles/Private/Rads_3675.jpg


Any experienced Problem-Solvers out there who've ideas on repairs? Remeberr: this is made from Cast Iron!
(you'll see someone's had a go at welding (I don't know whom, we inherited this unit with the new house, but now we need it)

Cheers
SP

 

[libby lou lou]

This should be quite an easy repair.The thing with cast iron, it has to be heated (oxy acetylene) till it's practicaly glowing, then either stick welded,or maybe migged. Looks like it wasn't heated before welding.

 

[markfxy]

why not just take out the section thats leaking youll have a shorter rad but easier than trying to weld cast

 

[ScarletPimpernel]

This should be quite an easy repair.The thing with cast iron, it has to be heated (oxy acetylene) till it's practicaly glowing, then either stick welded,or maybe migged. Looks like it wasn't heated before welding.

Oh, now that's helpful. Already found somebody in Totnes who can do it!
Many thanks
Carey

 

[spraggo]

Why not use oxypic, I have used this many times on old heating systems and it works a treat. Go to www.dunsleyheat.co.uk/oxypic.htm.

 

[ScarletPimpernel]

Why not use oxypic, I have used this many times on old heating systems and it works a treat. Go to www.dunsleyheat.co.uk/oxypic.htm.[/QUOTE]

Is this the same principal as using Fernox F4 Leak Sealer stuff that my pluming suppler sold me saying it'll work. Haven't tried yet, but another friend cast doubt that it would, but wasn't 100% sure about it.

 

[spraggo]

Hi sp
The fernox is usually OK on low water content systems but as you have cast iron radiators it would not be classed as low water content, Where as oxypic is suitable for larger systems.

Cheers

spraggo

 

[Burnerman]

Cast iron can be bronze welded, no problem - again with oxy gear.
John

 

[libby lou lou]

why not just take out the section thats leaking youll have a shorter rad but easier than trying to weld cast

Wow, forgot about that,not many people are aware of that, nice one.

 

[Jake1886]

Remove the section for a neat job.

Or for a cheap fix use Milliput. It can be sanded down if you wanted and painted. Available in most decent merchants.