I see the confusion now which brings the new question that during manufacturing process do they balance the 3 factors or just PVC + GMB neglect core. I suspect it could be the latter.James9118 wrote: ↑Fri Aug 13, 2021 8:47 am
In simple terms you've got a three part composite that needs balancing to give to overall density; core, PVC (or PU) and GMB.
If you apply the exact same coating to different cores (i.e. the same PVC/GMB mix and thickness) then you will end up with a different overall line density on account of the different cores.
Cheers
TC