Coppertex paper protects copper, brass, bronze, and other copper alloys from tarnish, staining and corrosion during storage and shipment. Nitrite-free. The 35 lb./57 gsm kraft is saturated both sides with a proprietary corrosion inhibitor, printed one side to identify it as a valuable packaging paper. Convenient size counter roll is easy to handle and use. Use to wrap parts individually, and as interleave between layers of parts.