Painting Hoods - Alternatives)

Discussion in 'Pressure Lamp Discussion Forum' started by Sedgman, Jun 3, 2025.

  1. Sedgman

    Sedgman Subscriber

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    Yep that perennial issue of painting or treating damaged hoods/ventilators.

    Having just bought a can of paint rated to 600 deg C I am living in hope or la la land.

    However, just wondering if anyone has ever tried gun bluing as an option.

    I also had an old timer tell me that heating steel to a dull red heat and dumping it in sump oil gives it some kind of protection. Anyone ever tried that.

    I don't usually have used sump oil any more as the dealer servicing the car keeps it. I also wonder whether it was older types of oil that may have worked rather than modern synthetic oils.

    Just pondering all of this.
     
  2. Tony Press

    Tony Press Australia Subscriber

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    @Sedgman

    I often “blue” steel parts, especially steel nuts, screws, bolts, etc: Heat them evenly until red, drop them into mineral oil. Repeat.

    Sump oil was once mineral oil. But I have been told that synthetic oils do not “blue” adequately, so I went and found a small drum of mineral oil.

    Tony
     
  3. Sedgman

    Sedgman Subscriber

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    Thanks Tony, good info. :thumbup:
     
  4. podbros

    podbros United Kingdom Subscriber

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    Interesting… :thumbup:

    hope it holds up :thumbup:
     
    Last edited: Jun 3, 2025
  5. Sammi Jane

    Sammi Jane Subscriber

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    Hiya,
    I did a test a while back to see how hot the parts of a lantern got, and this was the result. :-k
    Hope it's of use. :thumbup:
     
  6. presscall

    presscall United Kingdom Subscriber

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    Iain, I got this …

    IMG_3160.jpeg

    … to this

    IMG_3159.jpeg

    … with the use of this

    IMG_3161.jpeg

    … and this

    IMG_3162.jpeg

    I posted about it HERE

    John
     
  7. Sedgman

    Sedgman Subscriber

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    Gooday,

    Thanks for the ideas. No question that some sort of enamelling would be best so thanks @presscall for that info. The temp you found @Sammi Jane means maybe the paint might work so I’ll try it out for a couple of the more mundane condition hoods/ventilators on the lesser condition lanterns.
     
  8. Sammi Jane

    Sammi Jane Subscriber

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    No probs, we're here to help one another.! :thumbup:
     
  9. ROBBO55

    ROBBO55 Subscriber

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    Iain, like Tony I have used mineral oil to blue metal parts. I believe old sump oil was preferred because it has a higher carbon content, giving a better and more durable finish.
     
  10. JEFF JOHNSON

    JEFF JOHNSON United Kingdom Subscriber

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    Useful information.:thumbup:
     
  11. jmwatt

    jmwatt Australia Subscriber

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    I have had success using boiled linseed oil to blacken steel and help it being rust resistant. Not heated to anything like red heat, maybe 250C cor a bit more.
    I wonder if you heated a hood to red heat if it would not warp and possibly self destruct?
    Don’t know how the”treatment “ with linseed would last on a working hood
     
  12. Marko57

    Marko57 Australia Subscriber

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    Hello Lain

    The old hood drama we all have, no paint of any kind will last.

    I have a black Handi hood here that HandiAlbert sent some to Melbourne and had them redone.

    It looks as good as new, I just wiped the dust off it, I will post some pics of it.

    Cheers Mark. IMG20250724185111.jpg IMG20250724185119.jpg
     

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