After looking closer at my upper VV windows this past weekend, I saw no other option of removing the panes than to un-rivet the entire window from the shell. The toughest part was just pushing the frame out after all the rivets were removed. That 40+ year old vulkem still had its grip
As you can see in the pics below, the frames are dual channel and held together with split pins. One of the lower split pins was totally rusted away, the other lower pin is rusted but still useable.(The pin seen in the pic is an upper)
I plan to convert this into a single pane and use butyl tape to fill the inner channel which held the plexiglass pane. The channel is 5/16" wide x 7/16" high. The closest size butyl tape that I've been able to find (online) is 5/16" x 5/16".
Any recommendations of the best source for butyl tape? Online, home improvement, glass shop?
If there is a better way to fill that channel or just leave it empty, I'm open to suggestions.