National Gypsum. Gold Bond High Strength Fire-Shield Lite is the first lightweight Type X panel to achieve Greenguard certification. The gypsum board is 15% lighter than standard 5/8-inch Type X panels, says the manufacturer, making it easier to handle. In addition, the gypsum is said to offer improved score and snap, reduced dust, and a better strength-to-weight ratio. 704.365.7300. www.nationalgypsum.com.