Auto body repair & detailing: Mildew on Body seam sealer, seam sealer, odyssey one

Question
I have finished detailing my 2002 Honda Odyssey. One aggrevating area I can't seem to clean are the inside door edges where the body panel sealer exists.  I used bleach and scrubbed off what looks like mildew.  The vehicle has always been clean except for these areas.  Is this unusual and can this stuff be removed>  The van is white. I purscahed it new.

Answer
This is a pretty common problem, and I'm not sure what causes it. The paint over the seams is damaged because of mildew intrusion, possibly under the clear coat. You might try black streak remover for campers, but if that doesn't work, only painting the seams will fix it. Bill