Non-woven fabric waterproofing self-repairing water barrier sheet
In the unlikely event of a hole forming, the absorbent sheet catches and absorbs the leaking water, swelling to seal the hole for peace of mind. It plays a significant role as the absorbent layer of a self-repairing waterproof sheet!
The self-repairing waterproof sheet for leak prevention can be utilized as an absorption layer of the self-repairing waterproof sheet. If there is only a waterproof layer, any damage that causes a hole can lead to leaks; however, the high water-absorbent resin (fiber) incorporated into the sheet absorbs water and swells to seal the hole, preventing leaks. It can be used in waterproof civil engineering works such as final disposal sites, agricultural reservoirs, river embankments, and retention basins. As an absorption layer of the self-repairing waterproof sheet, it is common to have a bentonite layer sandwiched between the non-woven fabric of the surface material and the backing material. The disadvantage is that the sheet is very heavy, requiring large machinery for installation. Comparison with bentonite-based sheets: ◆ Work is made easier! A significant weight reduction of 25% improves workability! Large machinery is unnecessary, and the lightweight nature makes handling easy. ◆ Work efficiency is improved! The roll length is up to about five times longer, enhancing workability! The sheet is highly flexible and easy to handle, and the significantly increased roll length improves work efficiency. Features of the self-repairing waterproof sheet for leak prevention: - It has excellent waterproofing properties. - Even if sharp objects penetrate the sheet, it self-repairs and is less likely to leak. - It is lightweight and has excellent workability.
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basic information
The leak prevention self-repairing sheet can be utilized as the absorption layer of a self-repairing waterproof sheet. If only the waterproof layer is used, any damage that causes a hole will result in leakage. However, the leak prevention self-repairing sheet contains high water-absorbent resin (fibers) that absorb water and swell to seal the hole, preventing leakage. It is a self-repairing waterproof sheet. 【Product Specifications】 Surface Layer: Polyester non-woven fabric Intermediate Layer: High water-absorbent resin or high water-absorbent fibers, polyolefin fibers Bottom Layer: Polyester non-woven fabric Back Layer: Waterproof film Thickness: 4.4 mm (For other thicknesses, please consult us) Shape: Roll, Width 1200 mm × Length up to 100 m Width 2400 mm × Length up to 100 m (For roll lengths, we can accommodate from 20 m, so please consult us) We have a catalog available. Please feel free to contact us.
Price information
5,000 square meters or more per lot
Delivery Time
※Typically 2.5 months
Applications/Examples of results
The leak prevention self-repair sheet can be used as an absorption layer for self-repairing waterproof sheets. 1. Self-repairing waterproof material for landfill waterproofing work 2. Self-repairing waterproof material for agricultural reservoirs 3. Self-repairing waterproof material for river levees and retention basins 4. Self-repairing waterproof material for biotopes and similar applications It can also be utilized as an absorption layer for waterproof sheets in civil engineering projects where leak prevention is necessary. For more details, please contact us.
Detailed information
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Excellent self-healing properties. Even if a sharp object penetrates the sheet, it self-repairs!
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Features of Self-Healing Waterproofing Sheet - It has excellent water resistance. - Even if sharp objects penetrate the sheet, it self-repairs and is less likely to leak. - It is lightweight and has excellent workability.
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1. Self-repairing function that seals wounds and holes It demonstrates high absorption performance with a blend of water-absorbent resin or high-water-absorbent fibers. Upon contact with water, it exhibits an absorption capacity of about 400 times its own weight. Even if a sharp object penetrates the sheet, the swollen sheet seals the leak hole and prevents leakage. With an absorption layer placed throughout, it has been designed to minimize the spread of leakage even under impacts such as earthquakes.
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2. Excellent waterproofing properties Under conditions where pressure is applied, such as with covering soil, a mechanism works to maintain balanced pressure, filling and repairing small holes and scratches in the sheet. Since this self-repairing absorbent layer is distributed across the entire surface of the sheet, it demonstrates excellent waterproofing properties.
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3. Lightweight and excellent workability Self-repairing waterproof sheet Compared to bentonite-based sheets, it is significantly lighter by about 75% in weight ratio. Additionally, it improves workability with a maximum increase of about 5 times in roll length ratio due to its larger diameter. Before use, it is a dry sheet, making it lightweight and easy to carry.
Line up（2）
| Model number | overview |
|---|---|
| Self-repairing waterproof sheet - High water-absorbent resin (SAP) type | This sheet is blended with high water-absorbent resin in the absorption layer to provide a self-repairing function that prevents water leakage. High water-absorbent resin is a highly absorbent powder used in products like diapers. It absorbs water and swells to seal holes and prevent leakage. |
| Self-repairing waterproof sheet - High water-absorbent fiber (SAF) type | This sheet is blended with high water-absorbent fiber in the absorption layer to provide a self-repairing function that prevents water leakage. High water-absorbent fiber is made from high water-absorbent resin that has been processed into fibers, resulting in a highly absorbent material. It absorbs water and swells to seal holes and prevent leakage. |
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Company information
The Functional Materials Company will form a development-oriented business as a pillar of the business structure transformation within the Oji Group, advancing the development of new products and new technologies closely aligned with customer needs, as well as the exploration of new businesses utilizing core technologies. <List of affiliated companies> ■ Oji F-Tex Co., Ltd. ■ Oji Imaging Media Co., Ltd. ■ Oji Tac Co., Ltd. ■ New Tac Kasei Co., Ltd. ■ Oji Kinocloth Co., Ltd. ■ Oji Scientific Instruments Co., Ltd. ■ Oji Timely Co., Ltd. Others * Oji Functional Materials Company Portal Site https://www.oji-fmc.com/