Cardboard packaging is not inherently water-resistant. However, there are methods to create water-resistant packaging, such as coating or laminating the boxes in order to protect against moisture or minor splashes. It is important to note that coating or lamination does not make cardboard packaging completely waterproof and boxes will be damaged if exposed to water or moisture for an extended period of time or in large amounts. If you need to ship or store items that are sensitive to moisture, it may be best to consider using a different packaging material or seeking advice from our team of packaging experts for an optimal solution.