I am a novice working on my first real detailing effort. Its a 2004 Boxster. I have tried claying, wolfgang swirl remover using Porter Cable and orange pad, and bug /tar remover but cannot get rid of these white contaminants. You can feel them as a bump on rest of smooth car. They are mainly on front bumper and a few on hood. Any suggestions? rest of car is looking great as I removed ton of swirls and scratches. View attachment 52249View attachment 52250