A while back there was a topic about what pain to use on exhaust manifolds. Someone mentioned about Slip Plate graphite coating.
Maybe someone with experience with using this can chime in.
How long does it last? Does it come of easy if you touch it?
Here is the the link that shows Napa sells this. Is this the
correct Slip Plate to use on exhaust manifolds? Thanks.

https://www.napaonline.com/en/p/BK_33203