How to Preserve Poster Paper
Posters have been used to advertise movies, plays, products and even used to spread messages during times of war. According to All Art, the poster as we know it was created in the latter half of the 1800s by artists like Jules Cheret and Bal Valentino. Certain posters can be very valuable if they have been stored properly. Posters exposed to sunlight, dust, pests and other elements become irreversibly damaged and thus lose their value as collectibles.
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Instructions
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Lay the poster flat onto the acid-free board.
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Slide the board and poster into a Mylar poster sleeve. Center the poster on the board to avoid bent corners.
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Tape the sleeve flap, securing it to the sleeve's back.
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Lay the prepared poster flat in a cool, dry place and out of direct sunlight. Do not stack the posters on each other. Extreme heat, dryness or high humidity can affect the poster's condition.
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Tips & Warnings
If you wish to frame your posters, have it done by a professional framer. Make sure they use a protective UV-resistant glass or Plexiglas and include a spacer to keep the poster from being against the glass.
Some collectors get their posters restored with a linen backing, especially older, folded posters. If you decide to do this with your poster before storage or framing, use only a qualified professional restorer.
Acid-free cardboard tubes can be used when flat storage is not available; however, it will cause the poster to curl and may not be ideal for older folded posters.
