I use very little decals, even on my gasser models and I NEVER clear coat over them as once the models are completed I put them in my display case(curio cabinet) and only take them out to show them to someone, or to display at a club meeting or NNL. My models do not need PROTECTION a they are not exposed to the elements such as wind , rain, hail, snow, sleet, etc. and therefore do not need any kind of protection.