Use this Opaque Matte Modeling Paste by Prima to create texture, add dimension, or provide a base for other paints and pastes. This thick paste has an opaque matte white finish that dries hard and permanent, yet flexible. It is water-based and can be applied with a palette knife, paintbrush, or texture tool. It is archival-safe and non-toxic. The jar holds 16 fluid ounces (474ml) of modeling paste.