Ester Vagnozzi PhD, R&D coordinator at TekniPlex Gaggiano In recent years, there has been growing concern about the impact of aerosol propellants on the environment and human health. As a result, companies are looking for more sustainable alternatives to traditional aerosol propellants. What are the implications of different types of propellants and how can the impact on the product be mitigated by choosing the right rubber (gasket) material?