This powerful USDA Certified Biobased Product provides up to two times as much corrosion inhibiting action as its conventional VCI counterpart. BioPad® is cost-effective, adaptable, and easily applied. Simply placing it into your package will allow metal items to be protected while leaving them ready for use. BioPad is excellent for protection of ferrous and non-ferrous metals, the company states, as well as various alloys: galvanized and carbon steels, copper, brass, aluminum, zinc, etc. It is also free of nitrites and chromates.