On 9/17/18 5:24 PM, Marie O'Connell wrote:
> The brown with mud color in middle is the oxide side where the magnetic
> layer have ripped off. The black with the brown in middle is the backing
> where the oxide has ended up.
Yup, that's what a severely sticky tape looks like when it's unspooled
without baking. Lots of oxide stuck to the backing.
OTOH, there are lots of sticky tapes which cannot be distinguished from
non-sticky tape by visual inspection. Just last week I put up a reel of
3M 996 which looked normal, and fell freely off the reel, so no sign of
inter-layer adhesion -- but it sure was sticky. Fast wind got about 30
feet into the tape and stopped, with the tape solidly stuck to the
non-rotating guides. A photo of that tape wouldn't tell you anything
-- John Chester