Thermal paper rolls come in a range of thickness from 50gsm to 80gsm. We are mainly using 60gsm thermal paper for our customers now since 60gsm thermal paper has an appropriate length and favorable price.
Take 80mm x 80mm paper roll as an example:
|80mm x 80mm||55gsm||60um||80m||$0.700|
|80mm x 80mm||60gsm||73um||63m||$0.610|
|80mm x 80mm||65gsm||80um||60m||$0.590|
In general, if customers don’t have a specific requirement, we will use 60gsm thermal paper by default. You can read this article to know thermal paper gram/length/weight.