The flex durability is the ability of a material to resist flexing or kneading during production and transportation. Permeability test often comes after the flex process to ensure the overall performance of packaging materials.
ASTM F392 - Standard Test Method for Flex Durability of Flexible Barrier Materials
The headquarters of Labthink is in Jinan, China; its international headquarters is in Boston, USA. Labthink has more than 50 international distributors and more than 30 international service providers.