Polycarbonate warping issue

Tested the liquid glue, unfortunately my print still warps. On the default settings (200mm/s+), compared to glue stick the warpage is certainly reduced, but it seems no matter what I cannot eliminate it completely (tried slowing down and adding a brim).
I don’t know how you achieved a straight print. Perhaps white PC is less prone to warping somehow? That’d be very bizarre… What’s your chamber temp at?

I’ve had good luck with PC on the textured PEI plate on the X1. I drape 1 or more thick bath towels over the top and around the printer then leave the bed heating at 110C for 30-45 mins before starting the print. The elevated chamber temps seem to help.

High chamber temp
Use a raft
Use Bed adhesive
Increase the bed temp 5 degrees
Lower the infill

I have the same problem and I bought polycarbonate from mrplexi shop (mrplexi.ir). Please guide me, if I can’t go, then give me the polycarbonate sheet to buy.