Quote Originally Posted by beningh
Any body know what it was called and where I can find some more?
In about 1970 I briefly experimented with Kalvar film, probably purchased from Spiratone. The results didn't meet my expectations. It was a very slow UV sensitive vesicular film that could be fixed in hot water. A google search for vesicular film will point to
and other information. Kalvar proved to have serious long term storage problems.