How to Test Hydrolysis Resistance of PU Leather

Cross-section showing hydrolysis resistance PU leather structure

Introduction When sourcing PU leather for automotive interiors, furniture upholstery, sports equipment, or footwear, one of the most important durability indicators is hydrolysis resistance PU leather performance. Hydrolysis is a gradual chemical degradation process that occurs when polyurethane is exposed to heat and moisture over an extended period. Materials with poor hydrolysis resistance may crack, become sticky, lose flexibility, or delaminate long before the end of their expected service life. For engineers, product developers, and sourcing professionals, laboratory testing provides the most reliable way to evaluate long-term performance before materials enter production. In this guide, you’ll learn what hydrolysis resistance means, which international standards are commonly used, how accelerated aging […]