As the Post title says ...
I have a number of vallejo model color pots that are getting very thick with age and I want to thin the pots down a little so as they dispence better but dont go off.
Tried water and also vallejo's own thinners/diluyente a few years ago as a test but in both cases the paints went off very fast ( solid ) within weeks.
anyone know what to use to thin them but still keep expand the shelf life of the paints ?
thanks Tel