Now available from Era Polymers , Erapol E90A is a protective polyurethane coating suitable for use on aerodynamic articles.

Protecting articles with an aerodynamic surface, such as an aeroplane propeller or helicopter rotor, from erosive damage caused by flying particulate matter, is simple with Erapol E90A.
Typically made of polyurethane, with hardness between 85 Shore A and 80 Shore D, Erapol E90 provides a thin elastomeric protective covering to aerodynamic articles.

Erapol E90 is applied by centrifugal casting using a silane log gammaglycidoxporpyl-tri-methoxysilane as a coupling agent when bonding to a metal surface such as aluminum.