Q: How to use?
A: 1. Place the dry barrier on the inner side (dry side) of the door/garage entrance to allow water pressure to create a seal. 2. Lay multiple bars side-by-side to cover the opening width, overlapping edges slightly if needed. 3. Activate with a hose/rainwater – expands to 3–4 inches in 3–5 minutes.

Q: Can it be reused?
Yes. Reusable after sun-drying – requires full drying under strong sunlight before rolling flat for storage. Water absorption capacity may decrease with each use due to environmental factors like sediment, salt, exposure, or wear. Inspect before reuse; replace if damaged/aged.

Q: What should I pay attention to?
A: 1. Not suitable for fast-flowing water or long-term fixed protection. 2. Works on flat surfaces (concrete/tiles/asphalt); avoid sharp objects. 3. Must be thoroughly dried before storage – drying time varies by climate.