Decal Medium improves the adherence of the decal and prevents the formation of air bubbles. It also acts as a cleaner and helps prepare the surface of the model before applying the decal.
Before placing the decal, first apply Decal Medium with a brush on the surface of the model and then slide de decal from the paper to the surface; next apply Decal Medium over the decal and press down lightly with a finger or humid cloth to eliminate excess liquid.
Decal Medium contains alcohol, and is therefore flammable, but it is neither toxic nor irritating.
Click on the image below to download the Vallejo Decal Fix/Decal Medium Step-by-Step Guide or View the Video