Topband: "Flooded" coax?

[Missouri Guy, N0TT]

Hi Gents,

I have some RG-6 with a double AL foil shield with
a braid in between.  It's a "stiff" cable with a heavy
plastic outer covering.  I pealed back the layers and
I feel a somewhat sticky stuff in there....not as sticky
as I would think it would be if the cable was the so-called
"flooded" type.  But, then I don't know for sure.  

So, would someone describe the "flooded" cable in
more detail?

Thanks,
Charlie,  N0TT