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Dapol O Gauge 14xx No. 1444

Mick Bonwick


The Sharpie is indeed used for removing the bright shiny finish of the wheel rims, and the coupling rods, too. I have found in the past that airbrushed paint on these bare metal surfaces can rub off too easily, and even flake off  if applied too thickly. I read, many years ago somewhere, that this could be prevented by blackening the surfaces before applying the paint. At the time I didn't fully understand the term, 'blackening', and used a marker pen. That looked blue to me, rather than black (yes, I did use a black marker!) so immediately rejected the idea. If I now work on something with bright surfaces that will be airbrushed, I will apply a coat of black (still looks blue to me) from a marker pen before airbrushing starts.


You might be able to see the difference in this photograph, where the wheel rims and coupling rod have been done, but the flanges have not.




Perversely, they look pink in the photograph rather than blue.



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  • RMweb Gold


Would you still use this to knock back the silver colour if you were intending to add some shiny "grease" (dirty water or similar) to the coupling rods?


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  • RMweb Gold

That would depend on the required result, Tony. If it was to represent a fairly recently outshopped engine then I would apply the "grease" to the bare metal. If it was to represent a well-used engine and, therefore, a coupling rod covered in oil and grime, then I would colour it before applying the paint.

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  • RMweb Gold

Morning, Mick.


I have also used a permanent black marker for the same purpose and came away with a blue tint.


Glad its not just me. 



Standing by then. 



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