969 Body Primer
An aerosol primer can be used (easiest to apply). It is desirable that the composition contains zinc (this is the mark Zn). There are also two-component formulations. If you indicated what exactly to paint, it would be easier to choose. As for the 969 body you mentioned, the recommendations for use indicate steel and wood. And special emphasis is placed on the fact that non-ferrous metals are not suitable. So you have to choose a different range. For example, V1-02. Or anywhere aluminum primer is indicated.