Getting stuck baseball cards unstuck from each other can seem like a difficult task but there are several effective methods you can try that don’t involve damaging the cards. The first step is to examine why the cards are stuck together. Sometimes cards only appear stuck but can easily be separated. Gently try pulling the cards apart and see if they separate with little effort.
If they do not separate easily, the next step is to determine what is causing them to stick. The most common reasons are humidity causing the paper stock to warp and stick, or sticky residues left behind from sticker adhesives or other contaminants getting between the cards over time. In the case of humidity-warped cards, the safest method is to use a humidity control method to slowly equalize the moisture levels and relax the paper fibers. Place the stuck cards in an airtight container with a saturated salt solution, such as calcium chloride or magnesium chloride, sealed in a small jar. The salt solution works to regulate humidity levels. Check the cards every few days and try gently separating. This gradual method helps avoid tearing or damaging the cards.
For cards stuck together due to sticky residues or contaminants trapped between, you’ll need to try solvent methods to dissolve the adhesive. Be very careful when working with solvents, as they can damage the card stock, images or autographed areas if not used properly. Before starting, protect the work surface with wax or parchment paper in case of spills. The safest solvent for most standard trading cards is simply water. Place the stuck cards in a shallow dish of lukewarm water, making sure they are fully submerged but not weighted down. Let them soak for 15-30 minutes, then gently try separating. The water works to dissolve adhesives like gum or sticky residues that caused them to adhere over time.
If plain water doesn’t work, you can try adding a small amount of mild dish soap to the water. But avoid using anything with bleaching agents or fragrances which could damage the paper stock or inks. Agitate the solution gently if needed to help penetrate between the cards, then soak and try separating. Isopropyl or denatured alcohol can also be used for cards stuck together due to oily or greasy contaminants, but use sparingly as alcohols can dissolve inks if over-soaked or concentrated. Whichever solvent method you use, check the cards periodically while soaking and pull very slowly and carefully when trying to separate. Don’t force the cards apart if resistance is still felt, to avoid tearing. Allow more soak time and try again later.
As a last resort method, you can try using plastic spoons or popsicle sticks to carefully pry apart cards while soaking, lifting from top and bottom edges simultaneously with two utensils. Go very slowly, apply light pressure only and stop if you feel any resistance that could tear the card stock. Leave the cards soaking after each attempt for the adhesives to further dissolve. If properly soaked beforehand, this careful prying method can sometimes work where simple separation fails. But avoid prying on mint condition or valuable cards if at all possible to not risk damage. With patience and the right solvent method, stuck baseball cards can usually be successfully separated without harming the cardboard surfaces. Just take care to avoid forcing, and be willing to allow adequate soak time for optimal results. By following careful unsticking techniques, collectors can rescue cherished cards that were thought to be forever fused together. With a little care, even badly adhered cards can be saved.