The application of water-based polyurethane in condoms is of great significance.  The following are its main characteristics and advantages:

Material Characteristics

No Protein Allergy Risk:Water-based polyurethane does not contain the protein components found in natural latex, avoiding allergic reactions such as skin itching and redness caused by latex protein allergies. It is especially suitable for people with latex allergies.

High Strength and Durability:It has high tensile strength and tear resistance, and can withstand greater pressure and tensile force, reducing the risk of breakage during use. It exhibits excellent burst volume and burst pressure performance, effectively ensuring contraception and protection.

Good Thermal Conductivity: Compared with natural latex, water-based polyurethane has better thermal conductivity, allowing for faster heat transfer, giving users a more natural temperature sensation and improving the user experience.

Performance Advantages

Ultra-Thin Design: Advanced processes allow for extremely thin thicknesses (such as 0.02mm-0.06mm), with some products even reaching 0.01mm, providing a closer-to-skin fit and enhancing the realism and comfort of sexual activity.

Soft and Skin-Friendly: Through special formulations and processing techniques, water-based polyurethane condoms have a soft and delicate feel, with moderate friction when in contact with the skin, reducing discomfort.  They also have good elasticity, quickly returning to their original shape after stretching.

Water Resistance and Stability: They maintain stable performance in humid environments (such as during sexual activity), and are not easily deformed, broken, or lose their protective function due to moisture, making them suitable for various usage scenarios.

Manufacturing Process

Dip Molding:Typically uses a multi-dip drying process, where the water-based polyurethane emulsion is evenly coated on the mold. By controlling the number of dips, drying temperature, and time, a uniformly thick and densely structured condom film is formed, ensuring consistent product quality and performance.

Composite Technology:Some products use a composite material structure (such as a composite of natural latex and water-based polyurethane), combining the advantages of both materials. This retains the softness of natural latex while utilizing the high strength and water resistance of water-based polyurethane, further improving the user experience and protective effect. Overall, water-based polyurethane condoms, with their hypoallergenic properties, ultra-thin design, high strength, and good thermal conductivity, have become an important option in modern contraception and sexual health, especially for users who are allergic to traditional latex condoms or seek a superior user experience.

Sinograce Chemical produces water-based polyurethane resins used in condoms and disposable gloves. Inquiries are welcome.