TPU Environmental Stress Cracking: Why Cleaners, Oils, and Residual Stress Can Crack Parts That Pass Immersion Tests
An unstressed soak test can miss the combined effect of chemicals, residual or assembly stress, time, and temperature. Learn how to diagnose and validate TPU environmental stress cracking.
TPU Chemical Resistance: How to Validate Oils, Fuels, Cleaners, and Sweat Before Material Approval
TPU chemical resistance depends on the exact grade, fluid, concentration, temperature and stress. Learn how to build a practical exposure and finished-part validation plan.