This standard specifies the basic requirements for a two component, cold curing, chromate-free epoxy or
polyurethane, high corrosion and fluid resistant primer with improved tolerance to the standard of surface
preparation which can be used with or without a finish for aerospace applications.
The properties specified in this standard are obtained on defined aluminium alloy test pieces prepared in
accordance with EN 3837, process D and ISO 3270. The ability of the material to be used for a specific
application (e.g. alternative substrate, alternative primer, specific drying conditions etc.) shall be determined
by supplementary tests to confirm that the requirements of this standard are met.