Test pieces are cut into precise strips of a specified width (typically 15 mm or 25 mm).

While officially as of November 2013, the standard remains widely referenced in industrial quality control and historical material specifications. Scope and Application of DIN 53357

Understanding DIN 53357: Testing of Plastic Films and Sheeting

If you are setting up a new Quality Assurance (QA) protocol, it is generally recommended to adopt ISO 3377, unless a specific client contract explicitly demands DIN 53357.

remains a significant, albeit often superseded, standard for evaluating the bonding strength of flexible, multi-layered plastic products. Whether used in its original form or substituted by modern ISO standards, its principles are essential for ensuring product quality and structural integrity in packaging and coating industries.