What is polyurethane
Polyurethane is a versatile synthetic polymer that can be produced in different forms, ranging from flexible to rigid materials. It is created by a chemical reaction between polyols and isocyanates, allowing the material properties to be tailored for specific applications.
Polyurethane is known for its good mechanical strength, elasticity and resistance to wear. Depending on the formulation, it can combine flexibility with durability under demanding conditions.
What is polyurethane used for
Polyurethane is commonly used in applications where abrasion resistance, load-bearing capacity or elasticity is required. Typical uses include seals, pads, rollers, coatings and technical components used in industrial environments.
Because polyurethane can withstand repeated mechanical stress, it is often selected for machinery, equipment and handling systems where long-term performance is important.
Is polyurethane resistant to wear and mechanical stress
Yes, polyurethane generally offers good resistance to wear, tearing and mechanical loads. The material performs well in applications involving friction, impact or repeated movement.
This makes polyurethane suitable for dynamic applications where other elastomers or plastics may show faster wear.
What is the melting point of polyurethane
Polyurethane does not have one single melting point, because the term covers both thermoset and thermoplastic grades. Many polyurethane parts are thermoset (cross-linked), which means they do not melt when heated. Instead, they typically soften and then degrade rather than becoming a true melt. Thermal decomposition for polyurethane materials is often reported to start at around 300 °C, depending on the formulation.
Thermoplastic polyurethane (TPU) can melt and be reprocessed. For TPU, a typical melt temperature range is approximately 150 °C to 230 °C, depending on the grade and hard/soft segment balance.
What affects the performance of polyurethane
The performance of polyurethane depends on factors such as the specific formulation, operating conditions and type of mechanical loading. These factors influence properties such as flexibility, durability and resistance to deformation.
Material selection should therefore be based on the functional requirements of the application and the environment in which the material is used.
