Permabond UV640 is a high-performance, single-component UV-curable adhesive specifically engineered for plastic bonding applications. This professional-grade adhesive offers exceptional shear strength of over 1300 PSI on polycarbonate surfaces, making it ideal for demanding industrial uses. The fast-curing formula responds quickly to UV exposure, setting in just 4 seconds under LED lamps (100mW/cm²). With its crystal-clear appearance and high optical clarity, UV640 is perfect for applications requiring transparent bonds. The adhesive demonstrates impressive durability with over 110% elongation capability and maintains 60% of its strength at temperatures up to 212°F. Its versatile formulation provides excellent adhesion to various plastics and features a workable viscosity range of 3,000-5,000 cP at 20rpm. This industrial-strength adhesive combines rapid curing, high impact resistance, and superior bonding properties, making it an excellent choice for applications involving materials with different thermal expansion rates.