I have a description of how to securely mount Baader or other thin film on my web site :
http://www.joe-cali.com/eclipses/EQU...arfilters.html
I have used these filter mounts over and over for years without any problems. The mount protects the Baader film during transport but makes it easy to transport - no big containers required. Lot's of feedback from people who have found they work well.
Joe