Commercial Plywood (Interior use)
Commercial Plywood is used where cost is an element of product design. Generally a red hardwood species is used as the face of the board, with a softer species such as pine or poplar in the core. The plywood is bonded together with an interior grade urea formaldehyde resin. It provides a veneered surface that can be stained to match the predominant species in the construction.
Exterior Hardwood Plywood (Exterior use)
Exterior Hardwood Plywood uses a hardwood species throughout its construction and is bonded together using an exterior grade waterproof and boil proof phenolic resin (WBP). It is generally used where the appearance of the panel must be a natural veneer, but cost is an element of the design, such as in the manufacture of caravans, containers and packaging.
Marine Plywood is manufactured from selected durable tropical hardwoods. PG Bison effectively meets the requirements of the British Standard ruling specification that the plywood should in its natural state possess a minimum degree of durability against attachment by wood-destroying fungi. The selected hardwood veneer is bonded with phenolic adhesive for water resistance and strength. This conforms to the SABS 929 specification and BS 1088 standards as well as passing the 72 hour boil test. It is used extensively in the boat building / marine industry and for exterior applications.
The construction of Pine Plywood results in a material that is stronger than its component parts and more stable in all directions, using either interior (UF) or exterior (PF) grade glue. Panel grades are generally defined in terms of the veneer grade used on the face and the back of the panel. Pine Plywood is used in the manufacture of furniture and crating as well as pattern making and general joinery.
Pine Shutterply, unlike the other appearance grade plywoods, is a pine plywood where the grade of face veneer is of secondary importance to its application. Generally a C/C grade face is used with the panel bonded together with exterior (PF) resin. Shutterply is often coated with a resin to assist in the prevention of water absorption while also providing a good off shutter concrete finish. As its name implies, shutterply is primarily used in the shuttering (temporary moulding) or forming of wet concrete until the concrete sets. It is also used for packaging and in coach building. By storing, treating and cleaning shutterply correctly, the panels' lifespans can be significantly increased.