Micro Set is what you brush on the area before you apply the decal. Leave it for 5 to 10 minutes and then brush Micro Sol over the top of the decal. The Micro Sol softens the decal and helps it conform to recesses and raised details. The decal will wrinkle, but whatever you do, don't touch the decal, just leave it to dry and it will flatten out. Allow the decals to dry for a day if possible and then any air bubbles can be pricked with a pin and Micro Sol reapplied.