Why not try Geert's saltwater plate preparation. Since starting to use that I've not had a single problem with warping or lifting. First get any trace of grease off the plate with isopropyl alcohol and a small pad of clean fuzz-free paper towel.
Mix up a solution of plain salt and water in a clean glass container. It does not need to be so concentrated that un-dissolved salt crystals remain on the bottom of the container. Using another paper towel gently rub the salt solution on the plate in light, even strokes. No pressure needed and you definitely don't want any more than a thin salt film - like breathing on glass. When dry, proceed with printing.
I've just finished a run of 4 printings with the same salt layer. PLA @ 210C and 60C.
NOTE: Geert's saltwater method only works with PLA at the moment.
Edited by Guest-
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stu_le_brew 42
before offering any input to you it would be helpful to know your other print parameters
e.g. print head temp, speed, layer height, fan speed etc
I usually print PLA with a bed temp of 50
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