olive drabTwin Pack Olive-Drab Passivate produces a heavy olive drab chromate coating on zinc or cadmium plated surfaces. Olive-Drab provides the maximum salt spray and abrasion resistance of any type of chromate dip and is a satisfactory product for meeting Government specifications for this type of finish. Olive-Drab produces an excellent base for subsequent painting and can replace organic type primers for this purpose. The smooth glossy olive drab colour produced is an outstanding final finish for many types of applications. Olive-Drab will withstand salt spray testing of 150 -225 hours before the appearance of white rust and 400 – 750 hours before the appearance of redrust.