Kae Hwa’s HydraProof™ PE is an advanced, non-breathable polyethylene film engineered for industries demanding absolute liquid and environmental isolation. Combining high elongation, flexible strength, and dimensional stability, this premium waterproof membrane provides a flawless barrier against water, wind, and structural stress, making it the foundational material for heavy-duty protective applications.
In sectors ranging from construction to medical protection, materials are frequently subjected to severe mechanical stress and fluid exposure. A standard plastic film often fails due to uneven thickness, delamination, or tearing under tension. HydraProof™ PE is developed to eliminate these exact manufacturing pain points. Utilizing our state-of-the-art precision casting technology, we produce a highly uniform, non-breathable film that delivers consistent hydrostatic resistance. Its exceptional flexibility allows it to stretch and recover without rupturing, providing manufacturers with a stable, reliable, and production-ready barrier for laminates and standalone applications.
Construction moisture barriers and underlayments
Industrial liners and heavy-duty protective packaging
Medical and hygiene isolation gowns (liquid-tight zones)
Agricultural and environmental isolation covers
Base film for multi-layer waterproof composites
Unlike our breathable series, HydraProof™ is designed for complete containment. Its dense, non-porous polymer structure blocks 100% of liquid water, wind, and moisture vapor, ensuring total environmental protection and superior hydrohead performance in the most demanding conditions.
Fabrication processes and end-user environments often involve bending, stretching, and pulling. HydraProof™ PE is formulated for excellent elongation. It stretches and conforms to mechanical stress without tearing, ensuring the waterproof barrier remains completely intact during high-speed lamination, cutting, or field installation.
Uneven film thickness leads to weak spots and inconsistent heat sealing. Our precision casting extrusion ensures a flawless, uniform gauge across the entire web. This strict dimensional stability means the film maintains its form and barrier integrity even under pressure and temperature variations.
We understand that different converting machines require different friction coefficients. HydraProof™ PE can be customized with a perfectly smooth finish for high-clarity applications or a specialized embossed texture to improve grip, reduce static, and enhance the bonding strength during lamination or ultrasonic sealing.
| Brand | HydraProof™ PE |
| Product Form | Roll |
| Material | Polyethylene (PE) |
| Structure | Single Layer Monolithic Film |
| Breathability Mechanism | Non-Breathable (Complete Vapor Isolation) |
| Barrier Properties | 100% Waterproof, High Elongation, Superior Hydrohead Performance |
| Surface Treatment | Smooth / Custom Embossed / Clear, White, or Custom Colors |
| Weight | 10 - 100 gsm |
| Overall Width | 80 - 2000 mm (Customizable) |
| Length | 2000 M |
| Application | Construction membranes, industrial liners, isolation fabrics |
In the world of protective films, rigidity is often a weakness. When a waterproof film lacks elongation, sudden impacts or high-speed unwinding during production will cause micro-tears, instantly ruining the waterproof integrity. HydraProof™ PE is explicitly formulated to absorb kinetic energy by stretching. This high elongation ensures that even when the material is pulled, bent, or subjected to environmental stress, the barrier remains completely intact, drastically reducing failure rates for our OEM partners.
With over 60 years of polymer casting expertise, Kae Hwa Industrial delivers uncompromising reliability. Our HydraProof™ series is produced in ISO 9001 and ISO 14001 certified facilities, guaranteeing strict quality control from raw resin to the final roll. Whether you need a perfectly smooth surface for clear isolation or a deeply embossed profile for heavy-duty construction wraps, Kae Hwa provides the dimensional stability and flexible strength your manufacturing lines demand.
While our breathable films (like HygieSoft or BuildBreathe) use microporous technology to allow vapor to escape, HydraProof™ is a solid, non-breathable monolithic film. It is designed for applications where complete, 100% isolation from both liquid water and moisture vapor is required.
Traditional blown film methods can result in gauge variations. Our advanced precision casting extrudes the polymer onto a chilled roller, ensuring an extremely flat, uniform thickness (±0.01 mm tolerance). This guarantees consistent barrier strength and eliminates the thin, weak spots that typically cause moisture leakage.
Yes, we offer custom embossing. An embossed surface reduces the contact area between layers, preventing the film from sticking to itself on the roll (blocking). It also provides a better grip and increases the surface area for superior bonding when laminating the film to other substrates like nonwovens.
