This two-part EPO-TEK Fiber Optic Epoxy is a favorite of many installers for use with epoxy style fiber optic connectors. This fiber optic epoxy remains liquid until heat is applied. The application of heat provides a quick cure, turning the epoxy to a reddish-brown color. This EPO-TEK Fiber Optic Epoxy will not react like other epoxies to coating applied to the larger core/clad diameter of specialty fibers. Shipping restrictions and fees may apply.