I am in the process of painting my (front) bowtie and I'm wondering what kind of clearcoat to use. I don't know a lot about this stuff. I'm want to make sure that whatever I use doesn't yellow over time. I have a can of both Krylon indoor/outdoor clear acrylic and Krylon triple thick acrylic glaze. Will either of those work or should I use something else, like just a plain automotive clearcoat?