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Oil streaks


c.smith10

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I rely on Tamiya X19 Smoke - absolutely brilliant stuff, grey with just the right hint of brown. Thin it a little, especially if it's a bit elderly.

Alternatives are oil paints, watercolours, and washes. There are some specialist products now (eg from AK) that are designed to give that grimy petrochemical look straight from the bottle, although many are aimed at armour.

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I used a mixture of grey and burnt umber umber water soluble oils. I thinned them down and tried them on a test bed plane first.

I used a thin brush to brush on the thinned mix and where required wiped off drying residue to achieve the 'stain'.

Have a lookat photos for referencing esp to replicate the effects of airflow, it's not always a straight line...

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I put a very very small dot of oil paint, burnt umber, burnt sienna or whatever, at the place on the model where the oil leak originates, then just using a clean finger I wipe the oil paint in the direction of the air flow.

Edited by hovis
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  • 2 weeks later...

If you want heavily oil-streaked like the cowling on an F4U for example, black/brown oil lightly thinned on a fine paintbrush. Hold it up to where you want the stain, just touch the tip of the paint brush on the surface and hit it with air from an (empty) airbrush in the direction of the airflow/prop-wash. Practice on a piece of scrap plastic to get the pressure setting right.

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Lifecolor Tensochrom Oil

Or... next time you make some fresh coffee, squeeze out the grounds and use the highly concentrated coffee to simulate oil. Yhis has the andvantage of making your model smell nice. :D

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Lifecolor Tensochrom Oil

Or... next time you make some fresh coffee, squeeze out the grounds and use the highly concentrated coffee to simulate oil. Yhis has the andvantage of making your model smell nice. :D

Wake up and smell the model!

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