Prima Art Basics Modeling Paste: Opaque Matte. Opaque, thick paste with matte, white finish. Hard and permanent, et flexible, when dry. Perfect for creating texture, adding dimension, or as a base for custom paints and pastes. Mix with paint, pigment or ink. Water-based, archival-safe. Non-toxic. This package contains one 8oz jar of modeling paste. Conforms to ASTM D 4236. Made in USA.