Darby's Labstone is considered the 'work horse' of the gypsum family. It is designed for the ultimate versatility. Labstone is recommended for use in models and flasking, in the production of full or partial dentures, and in basing crown & bridge models. It has a creamy mix, moderate compressive strength and superior outward hardness. Labstone has a 11-14 minute set time. Features and Benefits Versatile Creamy mix Compressive strength Type III