When optical clarity and excellent structural, mechanical and electrical insulating properties are required, use LOCTITE® EA M-31CL, a 2-part, clear, colorless to slightly yellow, low-viscosity, liquid epoxy adhesive which cures at room temperature and forms an ultra-clear adhesive bond line with excellent impact resistance and minimal shrinkage. It can be used for a wide range of applications, including bonding, small potting, staking and laminating applications. ISO 10993 approved for use in the medical industry.