This work investigates and reports on acrylated monomer and oligomer performance results when subjected to typical end-use tests designed to measure the flexibility and adhesion characteristics of coatings. Oligomers having adhesion-promoting characteristics were tested alone or in combination with monomeric acid-functional adhesion promoters to determine the best type of oligomer to use for a given substrate. Also the correct adhesion promoter level of addition was determined to obtain optimum performance results. In addition, moisture resistance as it relates to oligomer type was explored.
Another significant development in the can-manufacturing industry has involved the elimination of Bisphenol A (BPA) from coatings that are intended for food packaging applications. The performance benefits of polyester acrylate oligomers are highlighted, compared and contrasted to those of Bis A epoxy acrylate oligomer. Each of the formulations used in this study are in fact BPA free.