VpCI-308 Pouch contains powders for corrosion protection of ferrous metals, aluminum, copper and bronze. The bags are made of * breathable Tyvek®, which allows VpCI molecules to be emitted through the membrane, and to form a molecular layer on metal surfaces, providing protection against corrosion. VpCI-308 Pouch is easy to use. There are no chemical concentrations to calculate, no special equipment is necessary for your application, you just have to determine the number of bags required per unit of space. VpCI-308 Pouch offers a clean method for corrosion protection. VpCI-308 Pouch is available in individually cut bags and each bag protects up to 1m3. They can also be ordered on request. * Tyvek is a registered trademark of DuPont.