Soldering Techniques?

[doctorwayne]

I have just under 200' of mainline in service, not including double track, passing sidings, staging tracks, and industrial sidings. All of the rails have been soldered together, and where gaps have been cut for electrical purposes, a piece of ABS plastic has been cemented into the gap with ca. I've had no issues whatsoever with expansion or contraction buckling the tracks, probably due to the relatively constant humidity and temperature in the room, which is neither mechanically heated or cooled.

Wayne