国際規格

Introduction of Gelbo Flex Tester The Gelbo Flex Tester is a specialized instrument designed to evaluate the flex durability and mechanical integrity of flexible materials such as barrier films, laminates, and coated fabrics. By simulating real-world twisting and compressive deformation, this tester provides critical insights into the resistance of packaging and coated materials to pinhole formation, cracking, and barrier property degradation. Standards such as ASTM F392 and ISO 7854 define the testing methods that ensure accuracy, repeatability, and international comparability. The Gelbo Flex Tester, sometimes referred to as a rumple flex tester or flex tester, operates by subjecting test specimens to simultaneous twisting and compressing motions. This combined action reproduces […]