Superior Adhesion

The challenge for adhesives is not only to adhere and show a good cohesion property, but to ensure a durable adhesion in severe conditions, such as humidity or heat. The urethane bond provides superior adhesion to a wide variety of substrates thanks to the following phenomena:   Hydrogen bonding with water and hydroxyl groups on the substrate surface   Physical interaction through van der Waals forces   Effective wetting of most substrates thanks to low surface energy Polyurethane adhesives based on aliphatic isocyanates last over time even under harsh conditions thanks to the weathering resistance of urethane bonds.