Weathered Wood is a crackling medium. Simply apply a basecoat of an Americana or Dazzling Metallics Color, then apply one coat of Weathered Wood in long, even strokes. When dry, apply a top coat of Americana color in a contrasting color and cracks will appear immediately for the antique look of weathered wood. This package contains 2oz of Crackle Medium. Conforms to ASTM D4236. Made in USA.