Casper_J wrote:They're Vallejo metalics btw
There's your first problem...
Vallejo paints don't thin well with water. It seems to make the pigment separate out. That's counterbalanced somewhat by the fact that they generally don't
need a lot of thinning. From my experience, it's mostly their whites and greys that go thick.
I've had nothing but poor results from Vallejo's metallics, though. The coverage is poor at the best of times, and they definitely don't like being thinned.
Metallics, (other than Tin Bitz and sometimes Dwarf Bronze) are one of the things that
GW beats Vallejo on, and thinning with water doesn't seem to bother them.