Coppertex is a 35 lb./57 gsm kraft saturated with a specially formulated Daubert Cromwell volatile corrosion inhibitor. Coppertex packaging paper protects copper, brass, bronze, and other copper alloys from tarnish, staining and corrosion during storage and shipment. Nitrite-free. Convenient size roll is easy to handle and use. Designed for individual parts wrap, and as interleave between layers of parts.