Epotek 301 is a premium, two-component optically clear epoxy adhesive renowned for its exceptionally low viscosity and superior transmission in the visible and infrared spectrums. Engineered for precision applications, this adhesive is ideal for bonding optical lenses, medical device assembly, sensor potting, and semiconductor underfill. It demonstrates outstanding adhesion to diverse substrates including glass, quartz, metals, and most technical plastics, curing effectively at room temperature or with mild heat to achieve a Shore D hardness of 85. As a NASA-approved low-outgassing material, Epotek 301 is a trusted solution for aerospace and high-vacuum environments where material purity is critical. Its clear, moisture-resistant finish and high electrical insulation properties ensure the long-term reliability of sensitive electronic and optical components. Please note that while we strive to maintain stock, this specialized product may experience extended lead times due to global raw material shortages affecting the high-performance adhesive industry.