Once you peel off the protective layer, after your film has been exposed to the dot screen, apply a second layer of Imagon the same way you did the first. It's VERY IMPORTANT that you remember to peel off the protective layer from the first layer of film! Return the plate to the exposure unit, lay your negative over the film - emulsion side down - engage the vacuum and exposure the film.
Take the exposed plate, peel off the protective acetate layer, and place the plate face up in a solution of soda ash and water. (10 grams of soda ash to 1 liter of water.) Cover the tray so light doesn't affect the plate and let it sit undisturbed for 9 minutes. I use a simple kitchen timer to keep track of the time.
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