Atelier’s Unlocking Formula has been specifically designed to help you control the drying of Atelier Interactive. It allows you to keep your acrylic paint wet for as long as you need. Mix the Unlocking Formula into your paint with either a brush or an atomiser spray. This formula will keep your paint wet, it will also re-wet or re-open recently dried paint. Once the paint is re-opened, new paint can be blended back in, existing paint edges can be feathered or whole sections can be removed with a rag to reveal under layers.