Low viscosity, ethyl-based instant adhesive. Well suited to absorbent surfaces. ISO 10993 certified.LOCTITE 4011 is a low viscosity, ethyl-based instant adhesive for the assembly of difficult-to-bond materials which require uniform stress distribution and strong tension and/or shear strength. This ISO 10993 certified product is well suited to porous or absorbent materials such as wood, paper, leather and fabric, although it can also bond plastics, rubbers and metals.