This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This specification covers a two-component air-curing, aluminum-powder -filled, epoxy-resin-base material in the form of a paste or putty, suitable for application by spatula or putty-knife. Primarily for filling small holes, crevices, and gaps or for smoothing areas requiring thin layers of material to produce the required smoothness on aerodynamic surfaces subject to service temperatures from -55 to +150 degrees C (-65 to +300 degrees F).