Loctite 401 Surface Insensitive Instant Adhesive is a clear, low / medium viscosity, one part instant adhesive designed for OEM assembly of difficult-to-bond materials which require uniform stress distribution. Loctite 401's improved formula allows high bond strength and speed up to temperatures of 250 °F and is suited for bonding a wide range of materials, including metals, plastics, and elastomers. Formerly known as Loctite 401 Prism.
