Plywood Blog

A blog introducing information about Chinese plywood products and markets

Oriented Strand Board (OSB) – Engineered Wood Based Panel

03/07/2024
3:56 PM

Oriented strand board (OSB) is an engineered man-made panel made of wood strands in specific orientations. The strands of wood are bonded together with adhesives under pressure and heat.

OSB is durable, strong, rigid and defect-free . It’s easy to use OSB which can be sawn, planed, nailed, screwed and painted. OSB is an excellent replacement of equivalent grades of plywood, solid panel or other wood panels.

There are 4 types of OSB according to their physical properties. Their moisture-resistant ability is depending on the glue used.

OSB/1 : general purpose OSB (interior use in dry conditions)

Glue: UF glue (Urea Formaldehyde)

Applications:

For non-structural usages, packing, furniture, decorating.

OSB/2 : load-bearing OSB (used in dry conditions)

Glue: PMDI(Isocyanate) for the core, MUF (Melamine-Urea-Formaldehyde) or PF(Phenol Formaldehyde) glue for the outer plies.

Applications:

Furniture, decorating, flooring, roofing, wall, signboards, packing, pallets.

OSB/3 : load-bearing OSB (used in humid conditions)

Glue: PF glue (Phenol Formaldehyde).

Applications:

Flooring, roofing, wall sheathing, signboards, packaging.

OSB/4 : heavy-duty load-bearing OSB (used in humid conditions)

Glue: PF glue (Phenol Formaldehyde).

Applications (Structure panel):

Structural components, wall sheathing, flooring & Subfloors, roofing, I-beams.

The density of OSB:

The density of common OSB is 650kg/CBM (+/-5%) . But the density varies with the wood species and compress ratio during production.

BlOG

Hot Blog

Shandong Fortuna International Trade Co., Ltd. Founded in 1990s in linyi city , It is one of the largest wooden panel manufacturers in China. Mainly exports Plywood ,Film Faced Plywood , Melamine boards, MDF ,OSB Boards for global importers, furniture factories, construction companies and building material wholesalers.