Hi,
All the trackwork in the slideshow was painted using the same technique. Once the turnout is completed, and mounted onto ties, the entire piece of trackwork is painted with Floquil Rail Brown.
I prefer Floquil paints as it goes on almost dry and dries to a flat finish. If using acrylic paint, you will have to prime the trackwork with a flat gray first as acrylic paint will not stick well to the rail or to the PC board ties, it has a tendency to bead up.
I clean the top of the rails immediately using a scrap piece of wood dipped into lacquer thinner. Using a stiff piece of wood ensures only the top of rail is cleaned. I have found a cloth or paper tower is awkward, and catches on sharp parts of the turnout.
Once dry I ballast the turnout.
After the ballasting is complete and thoroughly dry I weather the turnout a bit. I prefer a simple light misting between the rails of Weathered Black, just enough to darken the centre of the track as is commonly seen on the prototype.
To finish the rails, and to simulate tie plates, I use Floquil Paint Markers, specifically this set...
These paint markers are one of the best tools for painting rail there is! A simple pass along the edge of the rail and it is complete. Its very easy to control where the paint is applied and the results look great. I use the "Rust" pen for the rail.
When applying paint to the rail using the paint pen, I also drag some onto the ties. This simulates tie plates very well, in fact I believe they look better then the cast on plastic tieplates found on commercial turnouts as they are quite difficult to paint properly without getting paint everywhere, a paint pen doesn't work very well due to the spike heads sticking up.. Studying the prototype from a similar distance as we see out models will reveal the tieplates appear to only be a line of rust along the ties, using the paint markers simulate this very well. Don't worry about a bit of rust colour on the ballast either, as this is also very noticeable on the prototype.
Perhaps we should add a video to the site showing how to finish a turnout like the ones shown on our slideshow....
http://www.handlaidtrack.com/slideshows/general/index.html