Water on airbrush paintjob

Hello!


Whenever I get water on my painjobs, it leaves permanent stains. Does this happen to any of you as well?

I have made experiments where I apply clean tap water with a brush to unvarnished, gloss varnished and matt varnished surfaces. I always get these annoying little marks.

I use Vallejo acrylic colours and varnishes and I always let the paintjob dry for at least 24 hours before I start experimenting.

Does anyone know why this is happening or how it can be avoided? It is driving me crazy!

Attachment 19817

With high pressure paint droplets can dry in the air before they touch miniature. This makes surface rough textured and water soak into it leaving stains.

This is my guess.

What pressure you spray at? Maybe spraying whit lower pressure and more diluated paint will help. Surface will be smoother so water will have nowhere to soak.

Try with switching to using thinner or demineralized water, y'know, the cheap unscented kind that's used for ironing and can be found in any supermarket.