This powder is one part of 3M Vitremer Core Buildup. An advanced glass ionomer system for core buildup and restorative applications. Versatile system can be light-cured or self-cured to meet your application needs. Unique dark-cure chemistry allows for bulk placement which eliminates the need for layering and saves time. Displays a true glass ionomer cure for long-term fluoride release and adhesion to tooth structure. 9g bottle.