Isnt' "Model Master Thinner" 'Enamel Based???'
"
Thinning:
These paints can be thinned with regular paint thinner, Mineral Spirits, or Lacquer Thinner."
That comes from the 'WEM' site.
Enamel thinner and lacquer paints dont' mix.At least I could never get it too work?
Also...He stated he had seperation in a month,after thinning...Maybe thin only what you are going to use in that sitting?
Jeff