An Overview Of PUR Lamination

You might have come across laminated boards or veneers on visiting the facility of a timber veneer supplier. These boards or veneers will not be anything other than a type of engineered wood.

People in the woodworking industry will use these boards for making cabinets, furniture and even, flooring. The term ‘laminate board’ will merely denote a product featuring a thin face layer of a material glued on to a core. The material of the face layer will usually be wood or timber. On occasions, it could vary from ivory to marble too.

It goes without saying that laminate boards and veneers typically feature genuine wood. Manufacturers will slice layers of wood and adhere them to a solid core with an adhesive.

The innermost layers will typically comprise some variety of plywood or a composite wood product that does not shrink, bow or warp. The outermost layer will comprise a thin slice of natural hardwood. Manufacturers of these boards and burl veneers will use high-pressure moulds or apply steam to the wood to give it the desired shape.

What Does PUR Lamination Involve?

In the woodworking sector, PUR adhesives offer an unbeatable advantage. This can be especially so when manufacturing laminated boards and veneers. PUR adhesives possess the high levels of strength required to bind the construction materials together. So, if you use these adhesives for making furniture, you would not require screws or nails.

You would be able to preserve the visual appeal of the wood perfectly. In addition, you would be able to save both time and effort by not having to drill holes for the nails. Thus, to produce these boards and burl veneers, the manufacturers would simply press several layers of wood together and bind them with a PUR adhesive. This will involve the use of specialised machines.

The workers will feed the substrate through laminating equipment such as profile wrappers and foilers. The material requiring lamination will undergo a process that results in the application of the glue to the material. Thereafter, the glued laminate and the substrate will come together and go through various rollers.

The rollers will remain set at different angles that conform to the contour of the substrate. Thus, the bonding between the substrate and the adhesive will become much stronger resulting in burl veneers, laminate on boards or other similar products.

What Makes the Use of PUR Adhesives So Invaluable in the Woodworking Sector?

People associated with producing burl veneers and laminate on boards will often utilise PUR lamination to achieve their objectives. For the uninitiated, PUR denotes the abbreviated form of PolyURethane.

This synthetic material comprises several organic units connected by urethane links. It happens to be a polymer too. Invented sometime during the 1930s, PUR provided a cheaper alternative to the costlier rubber. With the passage of time, the use of PUR became more widespread in other applications.

During the 1990s, the use of PUR in adhesives, especially in the woodworking sector, came into vogue. PUR hot melts can be highly flexible. They can also withstand a wide range of thermal settings. They offer significantly superior levels of strength to traditional hot melt adhesives.

PUR polymerises when it comes into contact with the humidity present in the air. As a result, it can form stronger bonds with the wood once the curing process concludes. PUR adhesives also have a low Volatile Organic Compound (VOC) content. This makes them more environment-friendly and less hazardous. Not surprisingly, many manufacturers of laminated board and veneers use PUR in their manufacturing processes.

For the best laminated boards and veneered panels, don’t look beyond Processed Forest Products. We specialise in supplying the Australian furniture industry with quality timber veneer laying facilities.

We remain flexible in our manufacturing capabilities and processes. Thus, we can produce short production runs or bulk ones depending on your needs. To get a free quote, click here.

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