Ethyl/butyl cyanoacrylate adhesive liquid for the assembly of difficult-to-bond materials. Specifically formulated to provide flexible bondlines. Loctite® 4851 is a clear, colorless, ethyl/butyl cyanoacrylate adhesive liquid designed for the assembly of difficult-to-bond materials and is specifically formulated to provide flexible bondlines. It provides rapid bonding of a wide range of materials including porous or absorbent materials. It is suitable for the assembly of disposable medical devices, having Henkel's ISO 10993 protocol. Loctite® Instant Adhesive, 1-Part Flexible, Series: Prism® 4851™, Bottle Container, 20 g Container, Cyanoacrylate Base, 20 s Begins to Harden, 20 s Setting, 24 hr Curing, Clear, -65 to 125 °F, 1.1 Specific Gravity, 20 g/L VOC, 400 cPs Viscosity, Steel, Polycarbonate, ABS, Fabric, Leather, Metal, Paper and Rubber Adheres to, 725 psi Tensile Strength