Vallejo Chipping Medium.

Vallejo's chipping medium is a waterbased medium that can be used to create flaked paint, scratches, and rust chips.

Simply paint or spray over your base coat, add your next layer of paint and then use water and a brush or tool to create the weathering effects you desire.

Chipping Medium can be applied with airbrush or brush to create chipping effects with waterbased acrylic colors.