Low odor, low bloom instant adhesive. Suitable for plastics, rubbers and metals. Medium viscosity. ISO 10993 certified. LOCTITE® 4031 is a transparent, colorless, low odor, low blooming, alkoxyethyl-based instant bonding adhesive that is particularly suitable for applications where vapor control is difficult. Typical applications for the product include the assembly of disposable medical devices. It can bond plastics, rubbers and metals and is certified to ISO 10993.