White glue or matte medium for securing ballast?

[MasonJar]

Both are effective, but the glue can look shiny. If your flex track connections are solid, I don't think either will have an effect. And since you did not seem to mind the "weathered" look, I am not quite sure what your question is... :?:

What are you looking to achieve this time round? Also, besides spraying or using an eye dropper, how else do you apply your glue mix?


Andrew