When the copper is exposed, rapid pitting corrosion due to galvanic action can occur in instances where the lead coating is porous or incomplete. Lead-coated copper takes paint readily and holds it well. In fact, the durability of properly applied paint is usually enhanced by the lead coating, provided that the paint selected is suitable for the purpose. When permitted to weather naturally, lead-coated copper gradually darkens to a soft gray color. Because of lead's inherent corrosion resistance, chemical coloring to speed the dulling produced through natural oxidation is not deemed practicable.
Continuous coils are also available.