Iron, steel and aluminum are strong, durable and used in a wide range of residential and commercial applications today. However, these metals are subject to corrosion under the right conditions. In fact, when exposed to a high degree of toxins and corrosive atmospheres these metals require additional protection. For many years zinc chromate plating has been the standard for corrosion resistance and is still used today in many areas. Why is it so effective and why are replacements being sought? Let’s delve a little deeper into the issue to see.