Stay away from that snake oil. Best-case scenario it’s a Si02 sealant that they’re telling people to use way more of on application than professional-grade brands.Last week we used Hydrosilex
I had the same issue. I park off a busy street and it is a bit dusty. I just washed and polished and then early the next morning I applied Gyeon Prep to one panel at a time and immediately use gyeon pure. Then at the end I covered the car for 24 hours then applied gyeon cure. The results were amazing. With Pure the more the week went on the better the shine got. It got plenty of thunderstorms during the first week before my first wash but whenever I could I would go out and wipe it down and apply cure again.Do I love waxing? Not terribly, but ceramic is a bit too involved for my apartment parking lot with no chance for protection from a quick Florida sprinkle.