Water Resistance

Water Resistance refers to the ability of a material or product to resist water penetration or water damage. It is a common quality indicator in foreign trade, especially applicable to textiles, footwear, electronic products, packaging materials, etc. Usage scenarios include: contract quality clauses, product specifications, inspection standards (such as AATCC 35, ISO 811), customer complaint handling, etc. Note: Water Resistance ≠ Waterproof; the former usually refers to resistance to water penetration under certain conditions (such as spraying, short-term immersion), while the latter refers to completely preventing water from entering. Different test methods (such as hydrostatic pressure, spray, immersion) yield significantly different results, so standards and grades must be clearly specified. Difference from 'Water Repellency': water repellency focuses on surface water repellency, while water resistance focuses on overall resistance to penetration. In foreign trade, specific test methods, conditions, and acceptance criteria should be agreed upon to avoid claims caused by misunderstandings.