Henk,
Did not Jennifer state that she used Kentmere (Lumnos) SW-ART)? This
paper ( and I have used it for carbro) definitely does not have
a layer of super-coating. This can be observed very easily in
its tendency to develop stress and abrasion marks from routine
handling. I don't know how it works with bromoil, and there are
some problems with carbro that I will comment on in due time, but
it is for sure not super-coated.
Sandy King