ORIENTED STRAND BOARD (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. OSB is a material with favorable mechanical properties that make it suitable for load-bearing applications in construction. The adhesive resins types used include: urea-formaldehyde and pine core (OSB3, nonstructural, waterproof). Isocyanate-based glue and (or PMDI poly-methylene diphenyl diisocyanate based) in inner regions with melamine-urea-formaldehyde or phenol formaldehyde resin glues at surface (OSB 3, structural, water resistant on face). phenolic formaldehyde resin throughout (OSB 3, structural, for use in damp and outside environments).
OSB3& OSB2 Size | Â 1220mm x 2440mm, (Customized Size) |
Thickness | Â 8mm, 9mm, 11mm, 12mm, 15mm, 18mm |
Core | Â Pine |
Glue | E0 ENF PMDI WBP Melamine Phenolic |
Oriented strand board (OSB), is the upgrading of the traditional particleboard products. Its mechanical properties with directionality, durability, moisture resistance has more dimensional stability than an ordinary particleboard. With a small coefficient expansions, no distortion, good stability, uniform material and nail holding high performance.
OSB is of engineered wood similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations.
Advantages:
Tight construction and high strength;
Minimum twisting, delamination or warping;
Water proof, consistent when exposed in the natural or wet environment
Low formaldehyde emission;
Good nailing strength, easy to be sawn, nailed, drilled, grooved, planed, filed or polished
Good heat and sound resistant, easy to be coated;
OSB3 is used on flat roof situations, a far better product than standard chipboard or particleboard.
OSB is widely used as a structural wood panel for floors (including subfloors and underlays), walls and ceilings. It is used for interior fittings, furniture, shuttering and packaging and also in the manufacture of I-joists, where it forms the web or support between two flanges of solid wood. OSB is being used not only for its structural properties but also for its aesthetic value, with some designers using it as an interior design feature.