Mike Lamb Posted September 26, 2013 Report Share Posted September 26, 2013 This boiler pipe looks like it has been patched with an iron paste repair compound. I have used Black Swan's iron paste to repair metal drain pipe with great success but do not know if this stuff will hold up under the pressurized conditions of a boiler. Any remarks would be helpful. Click to Enlarge 44.68 KB Quote Link to comment Share on other sites More sharing options...
allseason Posted September 26, 2013 Report Share Posted September 26, 2013 A steam heating boiler is only running 1-3 psi. The pressure doesn't seem like an issue. Changes in temps may have an effect. Quote Link to comment Share on other sites More sharing options...
Mike Lamb Posted September 26, 2013 Author Report Share Posted September 26, 2013 Should have been more specific. It is a closed loop system but the psi isn't much higher at 12-15. I'm wondering if anyone has any practical experience with this patch. Quote Link to comment Share on other sites More sharing options...
kurt Posted September 26, 2013 Report Share Posted September 26, 2013 It'll work for a while. Then it won't. Good catch. Quote Link to comment Share on other sites More sharing options...
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