Epotek 302-3M Black provides the same robust physical and chemical properties as the standard 302-3M formulation but includes an opaque black pigment for specialized technical requirements. This material is the industry choice for light-shielding in optical sensors and security potting in sensitive electronic assemblies, where it effectively conceals circuitry and prevents unauthorized visual inspection. The black variant maintains superior moisture barrier properties and high electrical insulation, ensuring that encapsulated components are protected from both environmental stressors and electromagnetic interference. It is frequently utilized in the manufacturing of medical devices and optoelectronics where light-leakage must be eliminated to ensure sensor accuracy. With its low-stress, room-temperature cure and high adhesion strength to varied substrates, Epotek 302-3M Black offers a reliable, opaque solution for high-reliability hardware requiring a durable, light-blocking protective finish.