kappa Board 2mm 4mm Carton Board Rigid Grey Cardboard Paper Grey Kappa Board

In an era where unboxing has become a pivotal part of the customer experience, the packaging is no longer just a container; it is a silent ambassador for your brand. For products where perception is paramount—luxury goods, electronics, and premium accessories—the packaging must communicate quality, durability, and attention to detail from the very first touch. Our Kappa Board, also widely known as Rigid Grey Cardboard or Carton Board, is specifically engineered to be this critical foundation. Available in a versatile range of thicknesses including the industry-preferred 1MM, 2MM, and 4MM, it provides the uncompromising structural integrity that premium brands rely on.

The defining characteristic of high-quality Kappa Board lies in its exceptional physical properties. It is manufactured to achieve good cardboard stiffness, ensuring that boxes maintain their shape and resist indentation. Furthermore, it possesses a stable lateral quantitative, a technical term meaning the weight and density of the board are consistent across its entire surface. This consistency is vital for high-speed die-cutting and creasing, as it eliminates weak spots and ensures every box is uniform. The result is a material that is not easy to deform, guaranteeing that your packaging withstands the rigors of logistics, storage, and handling while preserving its pristine, like-new appearance.

The true strength of our Kappa Board lies in its adaptability. We offer an extensive thickness spectrum from 0.3mm to 4mm, allowing designers and manufacturers to select the perfect caliber for their specific application. A slender yet robust 1MM board is ideal for high-end hardcover bookbinding, presentation folders, or rigid set-up boxes for cosmetics. The versatile 2MM thickness serves as the industry standard for a vast range of jewelry boxes, phone boxes, and cigarette boxes, providing the perfect balance of substance and workability. For the most demanding applications, such as packaging for premium spirits, high-value electronics, or luxurious gift hampers, the formidable 4MM board offers unparalleled protection and a substantial, high-value feel.

This dimensional flexibility is complemented by a broad GSM (Grams per Square Meter) range of 250 to 2600 gsm. GSM is a critical indicator of the board's density and weight. A lower GSM within a given thickness might indicate a slightly more porous board, while a higher GSM signifies a denser, heavier, and often more rigid sheet. This allows for further fine-tuning, enabling you to achieve the exact "hand-feel" and protective quality required for your product, whether it's a delicate piece of jewelry or a heavyweight technical device.

The application of our Kappa Board is a testament to its reliability. In the jewelry industry, its ability to be precision-cut and covered with luxurious materials like velvet or paper makes it the undisputed choice for presenting valuable items. For phone boxes, its rigidity protects sensitive electronics during transit while providing a premium unboxing ritual. The stability of our board is essential for cigarette boxes, ensuring a perfect rectangular form that protects the contents. Beyond these, it is extensively used in producing high-quality calendars, game boards, and premium retail shopping bags, demonstrating its cross-industry versatility.

By choosing our Kappa Board, you are not just selecting a material; you are investing in a component that enhances the perceived value of your product, strengthens your brand image, and ensures your items arrive in perfect condition.