Good luck with finding that info out. However, I can assure you that the film is not a rebox of another film, it is a one-off film made for 3M...even their entry-level Obsidian is a one-off film. Not to mention it has been in the works and testing for over 3 years...no point in testing an already existing product for that long. Also, compared to other big manufacturer ceramic films, it is actually one of the cheapest priced.