Products Description

Water-Absorbing Expanding Bags, also known as flood-control expansion bags, water-activated expanding bags, flood-prevention burlap bags, or soil-free sandbags, are waterproof emergency response products that are easy to store and simple to use. These bags contain a large amount of water-absorbent material that rapidly absorbs water and expands upon contact. They serve as flood-control sandbags in flood prevention, emergency response, leak sealing, and gap filling.

The outer layer of water-absorbing expansion bags is made of highly permeable jute or cotton fabric, designed in various specifications and shapes for different applications. The inner bag is filled with a specially formulated polymer absorbent material that expands 80–100 times upon contact with water, increasing its weight to approximately 15kg and achieving a load-bearing capacity of 150kg. Compact and lightweight before use, these bags rapidly expand upon water absorption. They are suitable for scenarios such as temporary levee reinforcement, leak sealing, and slope erosion protection. Constructed from eco-friendly, non-toxic materials, the absorbent core is biodegradable, eliminating cleanup requirements after flood discharge. Applications span river flood control, underground facility waterproofing, road drainage projects, and industrial/mining dewatering, replacing traditional sandbags to reduce labor intensity.

Product production

why choose us

Why Choose Us as Your Partner for Square Jumbo Bags?

Vertical Integration: Full Control from Raw Materials to Finished Products

We operate a fully integrated industrial chain, covering polypropylene yarn extrusion, weaving, and finished-bag sewing.
This ensures consistent quality, as we control every yarn from the source, eliminating risks associated with purchased fabrics.

Data-Driven Quality Assurance: No Empty Promises

We prioritize authoritative data over verbal guarantees.
Every batch of woven fabric undergoes strict pre-production inspection, including weight and tensile strength testing, to ensure compliance with standards.

Scalable Supply with Flexible Customization

Our multiple automated production lines enable a monthly capacity of up to 1 million bags, meeting your long-term, large-scale demands without stockouts.

A cooperative model focused on empowering wholesalers

It provides you and your team with product knowledge, application selection training, and professional technical support. It also responds promptly to any problems you encounter at the front end.