From: "P. J. Alling"
The funny thing is that I have gaffers tape that leaves a whole lot of
residue, and electrical tape that peels off easily and leaves almost
none, just the opposite of what would normally be true. In fact I
sometimes use the electrical tape to take the gaffers tape residue off
other objects. I remember my first experience with electrical tape. My
father had this cloth based stuff that was so sticky that you almost
couldn't remove from the roll, it seemed to form a permanent bond with
everything. I think my mother still has electrical cords that my father
repaired.
The cloth stuff is "friction tape".
It went over top of the electrical tape to provide a durable, weather
resistant outer layer to protect the taped joint against friction. It
was like the old Postal Service ... "neither rain, nor sleet, nor
freezing cold ..." When friction tape got old, the adhesive bled through
to both sides.
Or at least, that's what I learned in my first MOS school in the Army lo
these many, many years ago.
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