Black tie wraps do definately hold up longer than regular tie wraps,
but will still give up after several years. Used to use them for
Telephone cables, as well as coax. Wish I remembered the brand name ,


I'll bet Panduit was the likely name for them! They are one of the
larger makers of all kinds of ties, plastic, metal, etc. I used them for
decades. Do a Google search for Panduit Tie wrap and see what turns
up.


Ed K7AAT