Loctite 401 Instant Adhesive Medium Viscosity General Purpose 25ml 401-025ML/LOCTITELOCTITE 401 is an instant adhesive designed for the assembly of difficult to bond materials requiring uniform stress distribution and high tensile and or shear strength. The product provides for the rapid bonding of a wide range of materials, including metals, plastics and elastomers. LOCTITE 401 is also suited to bonding porous materials such as wood, paper, leather and fabric. Perfect for all quick repairs and all types of small emergency repairs.