Water-Activated Sandbags
4 fast-deploy water-activated sandbags — no sand or shovels needed.
Free Australia-wide shipping
Each pack contains 4 water-activated sandbags, designed for quick flood preparation around doorways, garages, shopfronts, and low-entry points. Lightweight and easy to store when dry, each bag expands when exposed to water to help create a temporary flood barrier during heavy rain or rising surface water.
Why this product
Key features
- Each pack contains 4 water-activated sandbags
- Activates in 2–3 minutes on contact with fresh water
- Swells to 18–22 kg per bag — no sand, shovels, or filling needed
- Super-absorbent sodium polyacrylate core forms an instant dam
- Stores flat at 270 g each; stack bags for higher protection
- UV-protected non-woven polypropylene shell for outdoor use
- Free Australia-wide shipping
Technical detail
Specifications
| Quantity | 4 water-activated sandbags per pack |
| Pre-activated weight | 270 g per bag |
| Activated weight | 18–22 kg per bag |
| Activated size | 600 × 400 × 120 mm (L × D × H) |
| Activation time | 2–3 minutes (fresh water) |
| Shell material | Non-woven polypropylene with UV protection |
| Absorbent core | 100% sodium polyacrylate |
| Shipping | Free Australia-wide shipping |
Related guides
Learn where this flood barrier works best.
Compare this against every other option in the flood barriers Australia comparison — every barrier type side by side by rated depth, deploy time, and cost. The guides below go deeper on specific site types and use cases.
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