Evonik launches new Vestamid polyamide elastomer foam

A new modification of Evonik’s established polyamide elastomer Vestamid PEBA (polyether block amide) is now available. The PEBA can now be foamed, making a density of 0.1 g/cm³ possible. The resulting foam has a rebound resilience of 73% and does not change its property profile in either hot or cold conditions.

Vestamid PEBA was introduced to the market by Evonik more than 40 years ago. From the outset, it was distinguished by its excellent low-temperature impact strength, chemical resistance, high elasticity, and good recovery behaviour. These properties are valued by leading sporting goods manufacturers for use in sports shoes. The development of the foam now allows even greater cushioning in sports shoe soles, while retaining all the other properties of the compact material. According to the company, the rebound of Vestamid foam far exceeds that of all soft foams previously used in shoes. At the same time, it returns most of the energy absorbed. Its stiffness can be adjusted as required.

The properties of the foam allow it to be used not only in sports shoes, but also in the automotive sector, for example, according to Evonik.