In article ,
ojunk says...
What are the do's and don'ts for clearning a glass negative carrier?
What clearers and matteral do the best job and the least amount of harm?

Alan Tippett
San Jose

Windex and lint free paper wipes (available from photo shops).
You might also try a microfiber cloth used for cleaning lenses.
It cleans without liquids.
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Robert D Feinman

Landscapes, Cityscapes, Panoramas and Photoshop Tips
http://robertdfeinman.com