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Hello everyone

Need some advice on what I might be doing wrong on this castigator model I am lining.

I've done oil paint lining before on my Rhino and it came out wonderfully, but for some reason this latest model is having a terrible bleeding/webbing effect across the paint and I am not sure what might be the root cause.

Attached is an image of it.

The model was primed and then sealed with gloss varnish (first by airbrush but then after it started webbing I tried a canned gloss just to make sure there was enough on the model). The only thing that I have done differently on this model compared to the first is on this one I used GW White Spray and on my Rhino I used Tamiyo. I noticed the Tamiyo spray was waaaaay smoother, like silky smooth while this GW one does have that slight roughness. Would that be the cause?

I would have thought the smoother finish would have prevented this sort of thing, not caused it. But if that is the only difference, it's quite possibly the case.

Of course, it's almost certainly NOT the only difference. Relative humidity can also have a big impact. Temperature, pollen counts and other airborne pollutants, so on and so forth.

Still, there's a fairly straightforward fix. Cotton swab with just a TINY amount of thinner to clean up the worst of it (or possibly a makeup wedge for more precision), let everything dry, varnish, and do a final touchup with the base colors.

Your oil/thinner ratio is off so the oil paint has broken up in suspension with too much thinner applied. The thinner has, via capillary action, migrated into the surrounding areas and taken some of the oil in suspension with it, giving you this result. The finish won't impact this happening really, but less surface tension means if you flood the surface with oil, it won't stick where you put it.

I suggest buying higher quality oil paints or practicing with your ratios, as lower quality oils can't handle high levels of dilution with thinner.