If you’ve ever noticed your holographic Pokémon cards developing a bend or curve over time, you’re not alone. This common issue, often referred to as “warping,” can be frustrating for collectors. But don’t worry—there are simple ways to fix it and, better yet, prevent it from happening in the first place. In this guide, we’ll explore why cards warp, how to fix them, and the best practices for keeping your collection in pristine condition.
Why Do Pokémon Cards Warp?
Warping primarily affects holographic (holo) cards. Here’s why it happens:
- Moisture Absorption: Trading cards are made of paper stock, which naturally absorbs moisture from the air, causing the card to expand slightly.
- Foil Layer Resistance: The holographic foil layer on holo cards is made of thin aluminium, which doesn’t expand as much as the paper stock. This mismatch in expansion creates a curve or bend in the card.
Interestingly, non-holo cards rarely warp because they lack the foil layer. For example, a non-holo card left on a desk for months will remain flat, while a holo card exposed to the same conditions may develop a noticeable curve.
Can Warped Cards Be Fixed?
Yes! The good news is that warped cards can be fixed using safe, simple methods. Here’s how:
The Book Method
- Place the Card in a Heavy Book – Lay the warped card flat between the pages of a heavy book. Ensure the card is centred to avoid creases.
- Add Weight – Place additional weight on top of the book, such as another heavy book or a box of Pokémon cards.
- Wait – Leave the card pressed for several days. Over time, the weight will flatten the card.
This method is effective and safe. While the card may retain a slight bend, the improvement is significant compared to its original warped state.
Common Myths About Fixing Warped Cards
There are many unconventional methods circulating online, but most are ineffective or even damaging. Here’s why you should avoid them:
- Blow Dryers – Some suggest using a blow dryer to evaporate moisture from the card. However, this offers no real benefit and risks damaging the card with excessive heat.
- Hammers and Cars – Extreme methods, such as smacking the card with a hammer or running it over with a car, are not only ineffective but will likely destroy the card.
Stick to the book method—it’s tried, tested, and safe.
Preventing Warped Cards
While fixing warped cards is helpful, prevention is always better than cure. Here are some tips to keep your cards flat and pristine:
1. Use Sleeves and Top Loaders
- Sleeves – Always store your cards in protective sleeves. For added protection, insert the card upside down before sealing the opening.
- Top Loaders – After sleeving, place the card in a rigid top loader. These hard plastic sleeves prevent bending and protect against moisture.
2. Invest in a Binder
Binders are an excellent way to store and display your collection. They protect cards from moisture and dust while keeping them flat under the weight of the binder’s pages. For extra protection, consider a top loader binder, which accommodates cards in top loaders.
3. Use Silica Gel Packs
Silica gel packs, commonly found in product packaging, absorb moisture from the air. Placing a few in your storage containers or binders creates a drier environment for your cards.
4. Consider a Dehumidifier
If you live in a humid climate, a dehumidifier can help regulate moisture levels in your room. This is particularly useful for large collections stored in open areas.
5. Card Savers
Card savers, such as the Beckett Shield, are semi-rigid holders that provide airtight protection. They’re ideal for shipping cards but also work well for long-term storage.
Does Warping Affect Card Grading?
If you’re planning to grade your cards, you’ll be relieved to know that warping doesn’t affect the grading process. Grading companies like PSA and Beckett focus on factors such as surface wear, corners, edges, and centring. A curved card will be flattened inside the grading slab and can still achieve a perfect 10.
Why Do Only Holo Cards Warp?
As mentioned earlier, the foil layer on holo cards is the primary culprit. Non-holo cards, which lack this layer, don’t experience the same expansion mismatch. This is why you’ll rarely see a non-holo card warp, even under the same conditions.
A Note on Other Trading Cards
Warping isn’t unique to Pokémon cards. It affects most trading cards with foil layers, including Magic: The Gathering and Yu-Gi-Oh! cards. The same prevention and repair methods apply across the board.
Final Tips for Collectors
- Store Cards Properly – Always use sleeves, top loaders, or binders to protect your cards.
- Avoid Extreme Conditions – Keep your collection away from humid environments, such as bathrooms or basements.
- Be Patient – If a card warps, don’t panic. The book method is a simple and effective solution.
- Invest in Quality Supplies – High-quality sleeves, top loaders, and binders are worth the investment to preserve your collection’s value.
Conclusion
Warped Pokémon cards are a common issue, but they’re not the end of the world. With the right knowledge and tools, you can easily fix and prevent warping, ensuring your collection stays in top condition. Whether you’re a casual collector or a serious grader, these tips will help you maintain the value and beauty of your cards for years to come.