So, I bought a can of Krylon low odor clear matte finish and tried it for the first time today. After shaking the can for a minute and a half, I applied it to a clean, dry model. When it dried, the model had white streaks on it. The first thing I tried was removing them with some alcohol on a q-tip. They disappeared-- until the alcohol dried, then they came back. I remembered reading somewhere that a second coat of some other, more reliable clear coat might work. Tried that with Rustoleum clear matte and the streaks disappeared , never to return. The question is, what caused these marks in the first place? The marks were sort of in the vicinity of decals (but not directly around them). I had applied the decals using Micro Set/Sol. But the model was dry. It's a puzzle to me, but I figure somebody here might have some ideas.