Chemtools 8401 20g, surface insensitive adhesive glue, equivalent to Loctite 401, is a low viscosity combined with fast cure speed, surface insensitive cyanoacrylate adhesive (CA) that is specifically formulated to bond difficult surfaces with high industrial strength. This makes it ideal for a wide variety of industrial, manufacturing and repairing applications including bonding rough, porous and acidic surfaces like wood, cardboard, balsa wood, rubbers, plastics, metals, leather, etc.