go to your local buck store and buy some cheap gluesticks.
heta the plaet and put a couple or three layers of that on the bed - much better than kapton :-)

When i first started up in 3d printing, I bought a roll of 15 cm wide kapton sticky tape. On the grounds that it would be easier to just use the one piece.
It's damn near impossible to hande ultra thin super sticky kapton tape that wide.
So it was never used.
One of these days I might find a use for it :-)