Big Hauler track

[trainmaster67]

I am trying to find the composition of the Big Hauler's "G" gauge track (besides plastic)?

[Doneldon]

The Big Hauler track has a plastic base and very lightweight tubular (sort-of) steel rail.  It is suitable only for indoor use because the plastic is not UV resistent and the steel rail will rust to a grainy brown memory in about four-and three-quarters minutes outside.  D