Bags and boards: the basics of storing your comics
The simple setup that keeps your comics looking new for years: which bag, which board, and why acid-free matters.
Every comic we ship is bagged and boarded. Here’s why it matters, and how to choose the right supplies for your own collection.
What bags and boards do
A bag is a clear sleeve that keeps out dust, moisture and finger oils. A board is a stiff backing that stops bends, creases and warping. Together, they’re the foundation of comic storage.
Choosing a bag
| Polypropylene | Crystal OPP | |
|---|---|---|
| Clarity | Good | Exceptional |
| Feel | Light and flexible | Stiffer, more rigid |
| Wrinkles | Can wrinkle over time | Resists wrinkles |
| Cost | Affordable | Higher |
| Best for | Big collections, everyday books | Favourite books, display, special editions |
Many collectors use both: polypropylene for everyday books, Crystal OPP for the special ones. Polypropylene bags should be replaced every few years.
Choosing a board
Acid-free boards won’t pass acid into your comic, which helps prevent yellowing and brittle pages. Thickness is measured in points (PT):
- 18PT18
- 20PT20
- 24PT24
A 24PT board is about 0.024 inches thick and noticeably stiffer than 18PT or 20PT boards.
Planning to have a favourite book graded by CGC or CBCS? Keeping it bagged and boarded until then helps protect its condition. For more on caring for paper, see the Library of Congress preservation guides.
A few simple habits
- Match the size. Use the bag and board made for your comic’s size: current, Silver Age and so on.
- Store them upright. Keep comics standing in a box, out of direct sunlight, in a cool, dry place.
- Handle with care. Hold your favourite books by the edges, with clean, dry hands.
For the full comparison, read our complete guide to bags and boards, or shop comic supplies.
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