Rust for rust

[faraway]

...I still think paint and chalk are best for hopper and gon interiors...The ones you see here are done by airbrushing Floquil Rail Brown into the interiors and then dusting with rust-colored chalk.

I fully agree.That "standard" method is far superior to the rust kit I used.
I thought it might be interesting to demonstrate not suitable methods too. There is no reason someone else repeats my negative experience after reading this discussion.