Technical - Zinc Chromate Primer Question

My dad was cleaning out the attic of the garage recently and found this Aero Klad zinc chromate primer along with some Imron so he brough it over

Rust Remover Quart - RustBlast - Metal Prep Primer - Metal Etch

VpCI-®-373 Wash Primer: The Path to Good Coatings Adhesion on

Free of CFCs and ozone-depleting compounds, these primers meet VOC requirements. Good For aluminum and surfaces coated per MIL-C-8514 or DOD-P-15328

So-Sure® - TT-P-1757 Zinc Chromate Alkyd Base Primer, Flat Green | 0084-348

New Zinc Primer moeller 025472 Zinc Chromate Green : Zinc Chromate: For aluminum surfaces above or below the waterline. This powerful primer etches

MOELLER MFG. COMPANY, INC. ZINC Chromate Primer Green

DTM LATEX PRIMER/SEALER

METAL PRIME

What is the difference between zinc chromate primers, wash primers

Rust-Oleum - 1 Gal Yellow Rust Inhibitive Primer - 00241406 - MSC

What Is Zinc Chromate Used For?, How to Articles

What is Epoxy Zinc phosphate primers? And its benefits by

Zinc Chromate Primers

Mar Pro Zinc Chromate Primer - Green - 12 oz. - 6-5605

A702, GREEN PRIMER, CHROMATE FREE

Toluene LAS Aerospace Ltd

SO-SURE PRIMER TT-P-1757, Type II, Class C, Color Y - Deep Yellow