Dear Airbrush Wizards,
Yes, Tamiya paint does ruin my models.
I use a Badger 175 (the Crescendo), have tried pressures ranging from
10-25 Psi, fine-medium-large needle, diluting with 1:3 Tamiya thinner, diluting 1:3 with distilled water, diluting 1:3 with 50-50 mix og distilled water and isopropyl alcohol, and I always get this kind of grainy surface with a texture like 400-500 grid paper. Sometimes this appears in sort of large islands, or sometimes, like my previous Hasegawa 1/72 Zero, the effect of the XF-41 (IJN green) was 100% everywhere this paint was applied. And it looks terrible!Sigh, rinsed all paint of the entire model with a small brush, a soft towel and isopropyl alcohol. Took me like 3 days to get everything of. Decided to try the IJN from Polly Scale and Vallejo Acrylics for the bottom IJN grey finish; and the effect was like a quantum leap in quality. Effortless, perfectly smooth, clean, and homegeneous IJN green and grey everywhere.
Good, so moral could simply be: stick with Polly Scale and this might also be the path I'll choose.
But I'm still curious: Tamiya has a good reputation and is praised among many modelers, so any clues or hints about what I might be doing wrong here is most welcome.
Best, Mads