Cosmic Shimmer Matt Chalk Paint. This is a water based acrylic paint, that dries to a lovley matt chalk finish. It can be applied with a brush, sponge, roller or stamp to create different effects. Use it with Cosmic Shimmer Crackle Glaze to create a cracked, distressed effect. Available in a range of colours it is perfect for all types of craft application. Corinth Blue is a lovely pastel blue shade. 50 ml bottle.