Lamination is the process of overlaying one material with another in order to give it a protective layer or to make a composite material using bonded layers. Polyurethane lamination is widely used as it takes the flexible, water-resistant properties of polyurethane and adds them to the base material, such as fabric.
Polyurethane forms a quick, strong bond with other surfaces and lends its properties to the original material, making it more durable while allowing it to remain flexible.
Understanding Polyurethane Adhesives
Polyurethane, or PUR, is a form of plastic adhesive that is heated and dispensed from a cartridge or slug, it can even be sprayed to easily cover large surfaces.
Using polyurethane for Adhesive Lamination is a favoured process in a number of industries. Polyurethane reacts with moisture in the air to form a permanent bond, rather than other heat-based adhesives that can become softened with heat. It’s also highly flexible, extremely durable, and versatile in its range of applications – able to bond easily with almost any surface.
Enhanced Bonding Capabilities
Polyurethane adhesives bond differently from other adhesives. Most adhesives are heated and applied while warm, setting and forming a bond when they cool. Polyurethane lamination adhesives are also heated before application, but rather than setting when they cool, they react with moisture in the air.
This is more than just a temperature-based reaction, it’s a chemical change, and results in a bond that is much stronger than those formed by heat alone. Unlike other adhesives, polyurethane won’t melt when re-heated, and can only be removed with the use of an appropriate solvent.
This stronger bonding is one of the reasons that polyurethane is the go-to-choice for many adhesive lamination applications.
Resilience and Longevity
Partially thanks to this increased bonding strength, Polyurethane Lamination is also more durable than many other options. Polyurethane is highly resistant to environmental factors such as water and heat, and even chemical exposure, and makes for a very strong final material.
It also bonds very quickly with other surfaces and can expedite manufacturing processes where speed is important.
Versatility in Applications
Polyurethane is used for adhesive lamination in a huge range of industries, and increasingly so. Its quick-forming, strong bond is able to withstand water, heat, and chemicals, making it the ideal adhesive for so many applications.
Across industries such as Automotive, packaging, textiles and construction, polyurethane lamination allows for the creation and bonding of materials, giving long-lasting and resistant adhesion.
Because polyurethane lamination relies on moisture, not temperature, for its curing process, it cures extremely quickly compared with other hot melt adhesives. This can save a good deal of time on manufacturing processes.
Polyurethane adhesives also have a very short learning curve and are easy to use – they can even be sprayed across large surface areas for efficient lamination.
Contact Archbond for Your Polyurethane Lamination Needs
At Archbond, we’re specialists in polyurethane lamination processes and the supply of laminated products. If you want to learn more about the advantages of using polyurethane lamination for your industry.