0.5mm 1mm 2mm 3mm 1200gsm 2600gsm Grey Paper Board kappa Board Thick Paper Board Color Grey

In the competitive landscape of packaging and publishing, the choice of core substrate is a critical decision that dictates the quality, durability, and perceived value of the final product. Our comprehensive range of Grey Board, also known as Kappa Board or Thick Paper Board, is engineered to meet the most rigorous specifications. Available in a wide array of standardized and fully customizable options, this material provides designers and manufacturers with an unparalleled foundation for creating exceptional products, from high-end rigid boxes to durable book covers and intricate displays.

The defining characteristic of our Grey Board is its exceptional versatility, rooted in a robust manufacturing process that allows for precise control over its physical properties.

 We offer a comprehensive range of thicknesses from 0.3mm to 4mm, corresponding to grammages from 250gsm to a substantial 2600gsm. This allows for precise selection based on structural requirements. A 0.5mm board may be ideal for a rigid folder or a secondary layer, while a 2mm or 3mm board provides the formidable structure needed for luxury gift boxes and high-end electronic packaging. The direct correlation between thickness and weight (e.g., 1200gsm typically aligns with ~1.2mm, and 2600gsm with ~2.6mm) ensures predictable performance and simplifies the material selection process.

 Constructed from a high-density Mixed Pulp, our board achieves an optimal balance between stiffness, workability, and cost-effectiveness. The inner core of the board can be customized to achieve specific performance targets, such as enhanced rigidity for oversized boxes or a slightly more pliable nature for complex die-cutting applications. This level of control over the internal structure is a key differentiator.

 The standard board is offered in an uncoated state, providing a naturally absorbent and matte surface that is ideal for various lamination and adhesive applications. However, we accommodate special coating requests to achieve specific visual or functional effects, such as a pre-primed surface for direct printing. Furthermore, while the standard color is a consistent grey, we offer variants including Grey board with one side whiteboard, pure White, and Black, providing greater design flexibility without the need for additional covering layers.

The technical specifications translate directly into tangible benefits on the production line and in the finished product.

 The mixed pulp composition and dense formation result in a material with exceptional rigidity for its weight. This stiffness is the primary factor in protecting contents, giving boxes a premium "in-hand" feel, and ensuring that products like calendars and book covers stand up to use without bending.

 One of the most critical qualities for automated production is consistency. Our boards exhibit outstanding stability in their lateral quantitative properties, meaning the density and weight are uniform across the entire sheet and from one batch to the next. This eliminates production issues such as uneven die-cutting, inconsistent creasing, and machine jams, ensuring a smooth and efficient manufacturing process.

 The resistance to warping and deformation is a direct result of the stable inner core and controlled manufacturing environment. Unlike inferior boards that can twist or curl with changes in humidity, our Grey Board remains flat and dimensionally stable over time. This guarantees that finished boxes retain their perfect geometric shape and that hardcover books do not develop a frustrating warp.

We understand that integration into your supply chain must be seamless. Therefore, the product is available in standard sheets or can be cut to your requested size, minimizing waste and optimizing your production yield. To ensure our material meets your exact requirements, we offer samples for testing and evaluation, allowing you to verify its performance for your specific application before committing to a full order.