A New Substrate Wetting Additive for Low-VOC Aqueous Adhesive Products

摘要

Complete substrate wetting must occur in order to obtain a strong adhesive bond. Effective wetting additives reduce the surface tension of the adhesive, enabling complete coverage of the substrate. Effective wetting additives are especially important for low-energy surfaces, which would otherwise resist coverage. In addition, if a substrate is contaminated, low-energy contaminant particles repel the adhesive, resulting in surface defects and a weakened bond. When an effective wetting additive is present, adhesives will wet any contaminants and/or low-energy substrates, thus creating a strong, unimpeded bond.