Nourybond® 289 is a blocked isocyanate-based adhesion promoter. Product Details & Documents Product Information Brochure Epoxy curing agents: Product Guide_Asia en Brochure Epoxy curing agents product guide Americas en Markets & Applications Adhesives & Sealants PVC & PMMA (Polyvinyl Chloride & Poly-Methyl Methacrylate) Plastisols