Why have polyurethane adhesives become the first choice for many industries

In recent years, polyurethane adhesives have been increasingly widely used in multiple fields such as construction, automobiles, electronics, and packaging, gradually becoming the preferred bonding material in the industry. Behind this trend lies the superimposition of its outstanding comprehensive performance, wide adaptability and multiple advantages that meet the demands of green development.

 

Outstanding performance is the core competitiveness of polyurethane adhesives. It features high bonding strength and good flexibility, and can be adapted to various substrates such as metal, plastic, wood, and glass. It can even bond difficult-to-bond materials like rubber, solving the pain points of traditional adhesives, such as "weak adhesion and narrow compatibility". Meanwhile, it has outstanding weather resistance and chemical resistance. It can maintain stable performance in complex environments such as high and low temperatures and humidity, meeting the strict usage requirements of different industries.

 

The demand for green transformation further promotes its popularization. With the advancement of the "dual carbon" goals and the tightening of VOCs control, environmentally friendly polyurethane adhesives such as water-based and solvent-free ones have developed rapidly. Currently, the proportion of water-based products has increased to 28%, effectively replacing the highly polluting traditional solvent-based adhesives. This advantage is particularly prominent in fields with extremely high environmental protection requirements such as green buildings and food packaging.

 

The upgrading of downstream industries has further given rise to rigid demands. In the lightweight transformation of new energy vehicles, the amount of adhesive used in a single electric vehicle has increased nearly three times compared to that in fuel vehicles. Polyurethane structural adhesives have become key materials for battery packaging and body bonding. The demand for high-weather-resistant encapsulation adhesives in the photovoltaic industry has soared, driving the growth rate of its niche market to exceed 12%. The demand in these high-growth areas has further consolidated its industry position.