Quote Originally Posted by basfud View Post
I never print with rafts and no issues with model unsticking, but then again, I never use pure Kapton

I use either office glue like UHU Stick or dissolved PVA. For ABS (which I slowly abandon in favor of taulmann nylon) I use ABS juice and re-calibrate the bed on 110degC temperature (cause it warps more at those temps).

The only problems I get is the models sticking to the bed too well But you can use lighter butane refills to get them off (temperature shock) or pry them off with a snap-off knife (that works brilliant most of the time). You also get a perfect glossy surface on the bed side of the print.
It's funny, I printed raftless for 8 hours yesterday after fixing my flashforge with some band aids, on 1 layer of kapton (single sided) and no glue or spray.

All I ever need to do is mess with printing temps and it solves the issue. All my filament is different, its always down to settings for me and the only exception I find is the wood.