A USDA-certified, 100% biobased product, Cortec EcoClean biodegradable scale and rust remover dissolves heavy scale, corrosion and naturally occurring oxides on metals. It is safe to use with iron, carbon steel, stainless steel, copper, aluminum, magnesium and various alloys. The remover can be applied in a water-soluble pouch form that dissolves and releases the remover upon entry into the water. It is also available in a powder form and a ready-to-use liquid form.