Silane coupling agents are silicon-based chemicals containing two types of reactivity (inorganic and organic) in the same molecule. As a mechanism to enhance the performance of coating and ink systems, silane coupling agents are used in two different ways, as an additive or separate primer.
The application of silane coupling agent in primer contributes to improve the adhesion, maintain its humidity, chemical property, UV resistance and improve the dispersion of the filler. On the other hand, when the coating contains a small amount of silane coupling agent, the silane reacts and forms a hydrogen bond that covers the surface of the substrate and enhance its cohesion and resistance to water erosion.
At All Chemical, we recommend the application of the following silane coupling agents as an alternative to improve adhesion, durability, weatherability, toughness, and pigment dispersion of the coating.