Eco-Core® Poplar Blockboard
Blockboard is one of the oldest composites ever conceived. Furniture built with this material was in fact found in the Egyptian Pyramids. Today, blockboard panels reveal uncommon features of working versatility as they are easy to cut and reclaim, are light in weight, stable and have high mechanical features. Besides its traditional use in joinery works, the great dimensions of the boards make it advantageous for factories manufacturing modern and quality furnishings, in particular doors and furniture, as the light weight exerts less stress onto hinges, improving furniture life.
Environment
The Eco-Core Poplar Blockboard with poplar faces is manufactured using Poplar Logs from the Northern part of Italy and Southern part of France.
The Triple Core Poplar Blockboard with Poplar faces is rated E0 for formaldehyde emission. The Triple Core Poplar Blockboard with MDF faces and the 5 layer Poplar Blockboard are rated E1 for formaldehyde emission.
Specifications
The Eco-Core Poplar Blockboard is available with 3mm MDF faces in the following sheet sizes 3660mm x 1850mm x 18, 25, 30, 36, 40, 44, 50, 60mm thick or 3120mm x 1850mm and 2800mm x 1850mm x 36, 38, 40, 44, 50, 60mm thick.
The Eco-Core Poplar Blockboard with Poplar Faces.is available in the following sheet sizes 1850mm x 3660mm x 13, 18, 25, 30,36, 44mm thick.
Construction
The 5-Layer Blockboard consists of a long-grain core covered by two layers of cross-grain veneer sheets on each side with parallel grain. The core is formed by 29mm wide poplar strips bonded together; the two layers of veneer are also in poplar with a minimum total thickness of about 2.6mm. On request it is possible to produce 3-layer panels, made of long-grain core covered by one cross-grain layer of veneer sheet on each side.
Average Approximate Values of physical-mechanical features:
| PROPERTY | STANDARD | FROM UNIT | 13-15 | 18-20 | 21-30 | >30 |
| Density | UNI EN 323 | Kg/m3 | 400 | 380 | 365 | 360 |
| Humidity | UNI EN 322 | % | <11 | <11 | <11 | <11 |
| Bonding IF 20, EI | UNI EN 6476 | >8 | >8 | >8 | >8 | |
| Bending strength longitudinal | UNI EN 310 | MPa | 31 | 29 | 25 | 11 |
| Bending strength transversal | UNI EN 310 | MPa | 27 | 19 | 19 | 17 |
| Modulus of elasticity longitudinal bending | UNI EN 310 | MPa | 4.300 | 4.150 | 4.100 | 2.050 |
| Modulus of elasticity transversal bending | UNI EN 310 | MPa | 3.400 | 3.100 | 3.100 | 4.300 |
| Resistance to face withdrawal of screws | UNI EN 320 | N | 1.150 | 1.150 | 1.150 | 1.150 |
| Resistance to axial edge withdrawal of screws | UNI EN 320 | N | 700 | 600 | 600 | 600 |
| Resistance to transversal edge withdrawal of screws | UNI EN 320 | N | 1.200 | 1.000 | 1.000 | 1.000 |
| Hardness of surface | UNHSO 3350 | N | 1.800 | 1.800 | 1.800 | 1.800 |
Benefits
The boards are very light in weight - 350 to 380 kg/m3 depending on the thickness or approximately half the weight of MDF. The blockboards hold screws very well and are strong and stable due to its construction.
Applications
The thicker boards are typically used for internal doors, sliding doors, pivot hinged doors, large conference and meeting tables, long span shelving or high quality joinery/furniture.
It is used as a substrate material suitable for re-veneering or laminating. It is not recommended to apply a clear lacquer or paint finish directly on the faces.