The application fields of polyurethane include the following:

1. Clothing and sports equipment

    - Polyurethane is widely used in the clothing industry. Its representative products are high-elasticity fibers and leather products that are comfortable to wear, soft, stretchable, and have free elastic design. In addition to being used in women's underwear, tights, and socks, its amazing stretchability is fully utilized in ski suits and swimsuits. Moreover, in sports equipment such as skis and sailing boats, polyurethane coatings with excellent wear resistance and weather resistance are utilized; ski boards and surfboards use lightweight, wear-resistant rigid foams as core materials; and the soles of sports shoes also adopt elastomers with excellent elasticity and wear resistance.

2. Household items

    - In homes, products using polyurethane create a comfortable living environment for us. Polyurethane coatings apply a beautiful luster to the surfaces of furniture and musical instruments such as pianos, and provide a strong protective effect. Soft foam is widely used as cushion material and is also applied in health quilts to disperse the pressure on the human body. In the kitchen, rigid foam is used as insulation material for refrigerators, and polyurethane resins with good adhesion to plastic films are used in food packaging adhesives. In addition, elastomers that are harmless to the human body are also expanding their applications in products such as water purifier sealing materials, diapers, and sanitary napkins. In our daily lives, polyurethane artificial leather, synthetic leather, and foams are used in bags and shoes, and are highly praised for their natural feel and durability.

3. Electronic products

    - Promoting the development of the electronics industry is the mission of polyurethane. Polyurethane adhesives with excellent wear resistance and adhesion are used in audio tapes, video tapes, computer disks, rechargeable cards, and electronic tickets as magnetic adhesives for various recording media, improving recording density. In addition, as an insulating sealing material, varnish is used in polyurethane enameled wire, and UV-curable polyurethane rubber is used in optical fiber cables. In recent years, polyurethane adhesives have been applied in the printed circuits of mobile phones, and research and development in application aspects are making great progress to meet the demands of the times.

4. Medical machinery

    - Polyurethane has also contributed to the progress of medicine. Polyurethane elastomers have excellent human adaptability, adhesion, and antithrombotic properties due to their special structure, and are used as the best sealing material to fix the hollow fiber bundle of artificial kidneys. At present, research and development to further improve antithrombotic and human adaptability, and to apply it to artificial hearts and artificial skin, is also very active.

5. Automobiles and other transportation vehicles

    - The automotive industry requires future cars to have comfortable living performance, safety performance, and the ability to improve fuel consumption and protect the environment, all of which are inseparable from polyurethane. Various polyurethanes are widely used in all aspects of automobiles. In addition to roof materials with heat insulation and sound insulation effects, car seats that ensure comfortable driving, and materials under the car floor and sealing materials that isolate noise and vibration and maintain a quiet space, polyurethane also plays a role in instrument panels, door trims, bulkheads, seat backs, fenders, impact absorption agents, oil seals, non-pneumatic tires, and coatings. In addition, polyurethane-made tire chains, which are sturdy and durable, have good wear resistance and do not damage the ground, are attracting attention. Polyurethane coatings have excellent durability and weather resistance and are used in bicycles, motorcycles, light rail cars, shinkansen, and ships.

6. Construction and civil engineering

    - In the fields of construction and civil engineering, the characteristics of polyurethane are also fully utilized. In residential housing, rigid foam is used as the best insulation material in walls, floors, and roofs, greatly reducing the burden of heating and cooling supply and meeting energy-saving requirements. Polyurethane coatings have excellent weather resistance and are suitable for exterior wall coatings in residential decoration. Utilizing its water resistance, chemical resistance, and appropriate elasticity, it is widely used as flooring coatings for hospitals and sports stadiums, rust-proof coatings for high-rise buildings and bridge piers, cushioning materials between sleepers and rails, waterproof sealing materials for building roofs, and adhesives for the bodies of wooden prefabricated houses. In addition, it is also used in the construction of all-weather running tracks and golf courses.

7. Industrial materials

    - The application in industrial materials is also an important aspect of polyurethane that cannot be ignored. For example, elastomers, after molecular design to achieve optimal wear strength, can be used in office machines such as copiers and printers, as well as in rollers for papermaking, ironmaking, and electroplating, and are made into various conveyor belts, hoses, films, and film materials. The development of processing technologies is also very active. In addition, due to polyurethane's excellent insulation and durability, it is used as insulation and thermal insulation materials in LNG carriers and ground storage facilities. Polyurethane adhesives can be used to bond particleboard and MDF, avoiding the release of formaldehyde in residential buildings and attracting widespread attention.