Water vapor transmission rate: PVDC25GSM is less than 0.75g/m2.24H, PVDC40GSM is less than 0.6g/m2.24H, PVDC60GSM is less than 0.4g/m2.24H, PVDC90GSM is less than 0.3g/m2.24H
Gas permeability: PVDC25GSM is less than 0.6g/m2.24H, PVDC40GSM is less than 0.4g/m2.24H, PVDC60GSM is less than 0.3g/m2.24H, PVDC90GSM is less than 0.2/m2.24H