One of the tedious tasks when building a layout is to paint the rails. There are various methods nowadays ranging from spray-painting the track in situ to a rather natty looking gizmo I've just discovered on the web which uses a tiny foam wheel to apply the paint to the rail sides. I opted for the old-fashioned brush painting way. As long as you get comfortable, put some decent music on and concentrate it soon gets done. Rather than using a paint shade marketed to portray rusty rails I use ordinary Humbrol Matt Leather enamel (62) suitably thinned down. To my eyes the branded "track colour" is simply too dark in a small scale.