DIN EN 4476:2011-07

This standard specifies the requirements for a two component polyurethane topcoat, with a medium degree of resistance to erosion by the effects of rain, available in a range of colours and levels of gloss, to be applied over a primer for aerospace applications on areas where rain erosion at subsonic speeds may be a problem, for example, leading edges and air intakes. The properties specified in this standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837, procedure A, and EN 23270 and painted with primer to EN 2435-001. The ability of the paints and varnishes to be used for a specific application (for example, alternative substrate, alternative primer, specific drying conditions, etcetera) shall be determined by supplementary tests to confirm that the requirements of this standard are met. The Committee responsible for this standard is NA 002-00-14 AA "Beschichtungsstoffe und Beschichtungen für Luft- und Raumfahrt" ("Coatings and coating materials for aerospace") at DIN.