Discussion: More on Material Durability and Resistance to Delamination
Following up on our earlier discussions about card durability, I wanted to address the specific issue of "delamination"—when the layers of the card start to peel apart. This is one of the biggest signs of a cheap, low-quality card. I wanted to start a discussion about how to identify high-quality lamination and how to prevent your cards from peeling over time. Let’s talk about the science of a "fused" card. How do we keep them together?
First off, high-end polycarbonate cards are "fused," not just glued. During the production process, the layers are subjected to intense heat and pressure, which causes the plastic to bond on a molecular level. This makes it virtually impossible for the layers to separate without destroying the card. Let’s talk about the details. How do we spot a poorly-made card?
How to Identify High-Quality Lamination
- The "Edge Check": Look at the edges of your card under a magnifying glass. In a high-quality card, the edge should look like a single, solid piece of plastic. If you can see the individual layers, it’s a sign of a poor lamination process.
- The "Flex Test": Gently bend the card (not too far!). A well-laminated card will flex consistently as a single unit. A poorly-laminated card might show "stress marks" or tiny air bubbles appearing at the edges.
- The "Tap Test": As we discussed before, a properly fused polycarbonate card will have a sharp, metallic ring when tapped on a hard surface. This is a sign of high material density and a solid bond.
I’ve had one card for over two years now and even with daily use, the edges are still perfectly sealed. This is the difference that high-end equipment makes. What are your observations? Have you had any cards that started to peel or delaminate lately? Which vendors are currently producing the most "solid" cards? Let’s share our "fusion" findings!
