What is one key property of water soluble bags (WSB)?

One key property of water soluble bags (WSB) is that they dissolve completely in water. This characteristic allows them to be used for packaging products, particularly in the agricultural and chemical sectors, where the contents can be released quickly and easily when the bag comes into contact with water. The complete dissolution in water means that there is no leftover material after the contents are used, which can help reduce waste and make the process more environmentally friendly. This is particularly advantageous in applications where precise dosing of pesticides or fertilizers is required, as the bag will break down and allow for the active ingredients to mix with water effectively.

The other options do not accurately represent the fundamental nature of WSB. For instance, while waterproof and moisture-resistant properties are beneficial, they contradict the essential function of being water soluble. Likewise, WSB are specifically designed to dissolve rather than remain in solid form, and although there may be handling considerations due to their contents or the materials used, the necessity for specialized handling is not a defining property.