Electure,
With the filling compound in the conduit, if you need to remove a wire for some reason, is this still possible?.
Or does this stuff stay liquid?.
BTW, this is the only area of work here in New Zealand where Steel Conduit is still required.
I've done a few "Hazardous Area" jobs- equivalent to the US "Classified Areas", sort of.
Just in Service-Stations and Spray-Painting Booths, nothing too serious!.