e-on® Posterior Fill Flowable Composite is a radiopaque, lightcuring flowable composite. In contrast to conventional flowables, it is characterized by an increased depth of cure while at the same time showing reduced shrinkage stress, which means that it can be cured in layers of 4 mm thickness. When used as a base / liner e-on® Posterior Fill Flowable Composite has to be overlayed occlusally with an at least 2 mm thick surface layer of a methacrylate-based universal / posterior composite. e-on® Posterior Fill Flowable Composite is used with a dental adhesive. e-on® Posterior Fill Flowable Composite contains 75% w / w inorganic fillers in a methacrylate matrix.