i dont know what the steps are made of, something that reminds me of nylon, but more flexible, but just as slick.
I too have a box car with broken steps. Never have had luck.
I've had my share of trying to repair them on a couple of used items ive purchased.
Nothing really adheres in my experience-and i no longer try.
mostly depends first and foremost on getting perfect alignment-and the stuff has a memroy once bent.
What i have tried to do:
first gently align everything, if this means counter bending in order to straighten, then
use a high quality contact cement -here its called 'quick grip'.
The nice part is that it become very tacky , will hold alignment, and has some strength depending on the application.
It is more like a cast, with overlying gobs gaining enough hold to work.
It will also, with concerted effort, peel off and leave everything clean-least effort and passable results-no damage if it fails. It is superior to ACC because it remains slightly flexible and thus doesnt break its bond with a tiny knock. This to me is paramount.
I have messed with epoxies too, and they have a better chance.
Often they are messy, sloppy looking, and are very difficult to get to set and look nice, often funky colors too. Even five minutes is a long time in certain problems, as the stuff drips and runs.
The last option, which is more effort, is to use a mini drill, (pin vise) and try an internal splint with a straight pin or whatever -provided there's enough plastic to do this. The plastic is very difficult to work, as its tough, and doesnt cut cleanly for the most part.
One can drill a hole, or create a channel. This takes a pretty good eye and alignment on thinner bits, but often will add just enough , along with glue, to hold up with gentle handling.
If it bugs you, find a replacement assembly
