KevinM Wrote:
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> Not sure what is being used on 493, but very
> typically, calcium silicate blocks are used as
> boiler lagging on steam locomotives these days.
>
> /Kevin Madore
That is what CRRM called out for RGS #20. As God is my witness, I'll never lag a boiler with that crap again! Our usual insulation is 3-1/2" fiberglass house insulation, with the jacket supported on a fabricated steel frame, way easier to apply and work with.
Edited 1 time(s). Last edit at 09/03/2019 01:46PM by Kelly Anderson.