[Rail-Rider]

I must agree with that - some plastics are easy, particularly polystyrene, but others can be almost impossible to glue. Not just hard plastics, but soft vinyl types also, such as Peco sleeper bases. Silicone rubber sealant is an excellent standbye but not much cop for tiny locomotive parts.

 

[Rail-Rider]

By coincidence, I was visiting a friend who isn't much interested in trains but his son is. So I guess I was really visiting the son! I spent a bit of time with the lad and happened to read through a Hornby loco 'Operation & Maintenance' leaflet. Under 'Lubrication' something VERY unexpected popped out at me.

It says QUOTE A light machine oil such as 3-in-1 can be used.
PLEASE USE CAUTION as mineral oils of this type can cause deterioration to
the polystyrene plastic from which Hornby locomotive bodies are manufactured "
Polystyrene!
I find this very hard to believe - has anyone any comment or insight?