The cowl was painted orange, because the color was handy, any light color would do, and the decals like to be applied over paint better than raw material. I used SMS #1320 Kevlar.
Here is the decal I cut from the sheet and the solvent and brush I used.
The decal reacted very quickly to the decal solvent. Made the application easy. Just don't over do it with the solvent. I made the front edge conform to the part and let it dry for a bit.
Then tackled the rear and sides. A couple little patches were needed and easy to do.
Then it was clear coated with the mix of Dullcoate and Glosscote with a drop or two of Tamiya Clear yellow thrown in.