Moisture-Proof Bag

Moisture-Proof Bag is a packaging container specifically designed to prevent goods from being affected by moisture, typically made of polyethylene, aluminum foil, or composite materials, with a desiccant inside or high barrier properties. In foreign trade, this term is commonly found in transport packaging clauses for moisture-sensitive products such as machinery, electronics, textiles, and food. Usage scenarios include sea freight, air freight, and long-term storage, especially for high-humidity regions or rainy season transport. Precautions: Select the appropriate moisture-proof grade (e.g., standard moisture-proof, vacuum moisture-proof) based on cargo characteristics, and ensure the seal is intact; if the goods themselves contain moisture, they must be dried first. The difference from 'Waterproof Bag' is: moisture-proof bags focus on blocking water vapor, while waterproof bags prevent liquid water penetration; using them together with a desiccant is more effective. Foreign trade contracts or letters of credit should specify the material, specifications, and testing standards of moisture-proof bags to avoid claims caused by packaging non-compliance.