Since My Ho scale /1/64 scale layout sets out under a carport I was wondering if any one knows of company that makes decals that are Weatherproof ?
Pretty much any decal would be weatherproof providing you seal it under a clear finish.
Mark.
That’s the answer. But, even so, you’ll want to keep them out of the sunlight. Ultraviolet will cause these coatings to deteriorate. The decal colors and even the base paint will fade, too.