EPO-TEK® 353ND is a two component, high temperature epoxy designed for semiconductor, hybrid, and fiber optic applications. It is one of the most popular EPO-TEK® brand products, and is known throughout the world for its performance and reliability. Also available in single component frozen syringe. EPO-TEK® 353ND-T is a two component, highly thixotropic epoxy with non-flowing properties and high temperature resistance.