KlassKote claims their paint is compatible with both K & B and HobbyPoxy (both companies are out of business). I know both those paints were compatible so if either is compatible with Klass Kote they both should be.

I have some of all of them but haven't tried to mix and match anything with Klass Kote yet, but I'm confident it will work with no problem based on what others whom I trust have told me.