Different PVC grades have different uses. Let’s have a look at which PVC grades are used in card manufacturing and how different PVC grades impact the quality of your ID cards, smart cards, and access cards.
The right PVC grade affects print quality, lamination strength, and card durability. Choosing poorly can lead to bending, cracking, or print issues.
Most manufacturers use SG3, SG5, SG7, or SG8 grades of PVC. These differ in strength, flexibility, and how well they handle heat during lamination.
This PVC grade has a lower K value (~65), making it softer and more flexible. It’s used for cards that require bendability but not high durability.
One of the most commonly used PVC grades in India, SG5, is ideal for regular ID cards and membership cards. It has balanced strength, print quality, and cost.
SG7 is tougher, with a higher K value (~68-70). It is often used in contact cards that require extra strength and can better withstand lamination heat.
SG8 is a top-tier PVC grade for smart cards, RFID cards, and banking cards. With high rigidity and thermal stability, it is preferred when precision and durability are critical.
SG7 and SG8 are preferred for smart cards and payment cards. They hold up better to lamination and chip embedding.
In India, most card manufacturers use SG5 for standard cards and SG8 for secure cards. Local suppliers often provide customizable blends for specific card types.
Always ask for a PVC grade chart from your supplier. Ensure consistency in batch quality to avoid card rejections or lamination issues.