Featuring metallic particles sealed under clear anodized layer, pre-printed and variable data Metal Solar Placards offer markings tested and rated to last up to 25 years in outdoor use. Products are designed to meet National Electrical Code (NEC 2014) with pre-printed warning, caution, and variable data messaging that conforms to Article 690 as well as ANSI guidelines. Variable data placards come in both hand-writable and engravable options, and optional Paint Shields are available.