Roof Seal Corrosion T6.1

[Lambeth Cali]

iMO The seal was faulty from day 1, you were informed enough to check it within 6 months , where the rust was observed. Not through use but through the inherent issue with the seal design and manufacture

Do you think its possible that someone hits it with a rubber hammer or their palm in the factory?

 

[Viktorgeorge]

Do you think its possible that someone hits it with a rubber hammer or their palm in the factory?

Yes, possible, though they initially install with a roller. You can see this from 5 minutes and 39 seconds (just 3 seconds long) here:

Plenty of other possibilities too, of course.