Decals for models are created on a very thin adhesive vinyl. They do not require any water to transfer or apply. You can use a tiny amount of water or Windex on the adhesive backing, which enables you to freely position the decal. Simply blot dry with a paper towel. These decals will snuggle down over rivets and ribs very well, and only a tiny amount of heat is needed to set. (your finger, or a hair dryer for a few seconds).