i dont know if this is the same for painting these things, but i have used acrylic lacquers painting cars. not sure if you use car paints or not, but if you use acrylic laquer purpse thinners it can be very harsh and can cause reactions with even other acrylics. it will give it the best finish using the suited thinners off the gun as far as gloss, but using general purpose thinners can be a safer option for less reactions esp if painting over old paint. just thought id say that, from what i have experienced with painting acrylics.
