SI1500 is too aggressive to to use again after doing what you did. Why did you follow FG400 up with such an aggressive polish? You should have used something like SF4000 or SF4500. If you are going to polish the car again, you don't need to remove the sealant. Just start polishing because that will remove it. Follow up with an IPA wipe down and then reapply the sealant.
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2009 E90 328i Monaco Blue
premium/idrive/convience/logic-7/cold weather/ xenons/ saddle brown interior
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