Quality inspection items of medium density fiberboard MDF Generally, the quality inspection items of MDF include formaldehyde emission limit in wood-based panels and their products, and the surface bonding strength, water absorption thickness expansion rate, formaldehyde emission, internal bonding strength, static bending strength and other items of MDF products.

Technical Parameters of Ultralam Note: For the production of special batches of Ultralam LVL with high-grade veneer layers (according to the specification), design strength values can be increased by 15 – 20%. CONDITION RELATIVE TO THE GRAIN  Rb  Rs  R  X  I  23,5 ​ 22,5 ​ 22 ​ 3,8 ​ 1,7 ​ 16,5 ​ — ​ 2,6 ​ 1,1 edgewise along the …

Characteristics Average density [kg/m³]550Bending strength: flatwise, parallel to grain [N/mm²]50,00Bending strength: edgewise, parallel to grain (Height: 300mm) [N/mm²]44,00Tensile strength: Flatwise, parallel to grain [N/mm²]36,00Tensile strength: Edgewise, parallel to grain [N/mm²]36,00Compression strength: Flatwise, parallel to grain [N/mm²]40,00Compression strength: Edgewise, parallel to grain [N/mm²]40,00Compressive strength: flatwise, perpendicular to grain [N/mm²]3,60Compressive strength: edgewise, perpendicular to grain [N/mm²]7,50Shear strength: flatwise, parallel to grain [N/mm²]2,60Shear …