DARICE-Core'dinations Whitewash Cardstock. The Whitewash collection is one of several specialty collections in the Core'dinations ColorCore Cardstock line. Bring out the true beauty of this cardstock by sanding; tearing and antiquing the whitewash finish to reveal the core color. This package contains twenty 12x12in sheets of acid and lignin free heavy cardstock. Available in a variety of color combinations: each sold separately. Imported.