3M 186 Series 1/4 reel tapes

[vitorzoom]

I have the opportunity to purchase 10 new tapes 3M 186 Series 1/4 "x 2500 'Reel Tape on a 10-1/2". These are new and were in a controlled environment, I have Revox B77,
Tandbergtd 20Ase and Sony tc 850. Do not know these tapes, they serve
for these decks?

 

[vitorzoom]

3m 186

Are these good tapes?l are these tapes good? Year of manufacture 1989, in apparent good condition, new.Never heard of this model, so I know they are low noise. Somebody already used it and have a comment?

 

[KentTeffeteller]

Basically low bias tape a la Quantegy 631/641. Newer version of 3M 176. Commonly used in broadcast programming work. OK but not the best. Not the best for slow speed usage.