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Two-component polyurethane adhesives include polyols and poly-isocyanates or urethane prepolymers mixed just before application. The two components are the resin and the hardener, which contain isocyanate functions. Ratios of component A (resin) and component B (hardener) can vary.
The proper mix ratio and complete mixing are vital to reaching suitable properties for a specific application through a chemical reaction. Compared to KPU are able to cure more quickly and are not dependent on moisture or heat to cure.
When considering an adhesive technology, it’s important to know the advantages two-component polyurethane adhesives bring to manufacturing processes: Strong bonding to heighten durability ; Better chemical resistance compared to one-component polyurethane adhesive ; Automatic dispensing capabilities and quick cure speed to improve production efficiencies ;
Ability to cure quickly and in a definite time for an application adapted to your lean manufacturing needs ; High versatility and optimization of mechanical properties for enhanced performance ; Multi-substrates adhesion to increase design options for highly versatile design and applications ; Environmental compatibility with recyclable or partially bio-based adhesives.
The main attractive features of two-component polyurethane adhesives for automotive are that they give the assembly high resistance to impacts and vibrations. They are also a great solution to bond dissimilar substrates and assemble various materials, notably metals, glass, and many thermoplastic materials and composites.
The Global Automotive Two component polyurethane adhesives market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
HERBERTS LF 475 / HARDENER 297 – ERBERTS LF 475 / HARDENER 297 is suitable for laminates which are made up of plastic films (printed and unprinted), metallized films and aluminium.
Before beginning the production the suitability of the applied printing inks, film qualities, film additives and coatings has to be controlled individually. In case of any change in quality of these printing inks, films etc. new tests concerning the suitability are necessary. The desired properties of the laminates have to be verified through performance tests prior to the production.
