Summary: Minimum 90% of dry film weight must be zinc particles. Capable of being applied by spray or brush. Must meet accelerated corrosion, adhesion pull-off, adhesion cross-cut and Mandrel bend tests. No more than 5% of the surface area may show rust (stage 2) after 120 cycles of corrosion test. No stage 3 or 4 corrosion may be present after 120 cycles of testing. The maximum composite blister rating shall be no more than 5.3 after 120 cycles of testing.