StyroGlue Plus Base is a 100% polymer-based, fiber reinforced, water-resistant base coat and adhesive, which is field mixed in a 1:1 ratio by weight with Type I-II Portland cement meeting ASTM C150. StyroGlue Plus may be used as an adhesive and base coat for AkroFlex EIF Systems and EPS foam shapes. StyroGlue Plus is highly water-resistant and can be used as a secondary water-barrier.