Master Bond UV10 and UV10TK are one component UV curable modified epoxy compounds, ready for use as supplied, for high performance casting, coatings, sealing and bonding applications. UV10 is a low viscosity amber liquid at room temperature and UV10TK is a medium viscosity amber liquid at room temperature. When exposed to a source of UV light these compounds form strong bonds, coatings, seals and castings with superior chemical resistance. Fast cures take place using light sources emitting at a wavelength of 320-360 nm at as low as 20-40 milliwatts per cm² of energy and higher for faster cures. UV10 or UV10TK can be cast to .125" thickness. Master Bond UV10 and UV10TK are not oxygen inhibited and therefore do not require an inert atmosphere. High bond strengths are obtained with metals, ceramics, glass, paper, many plastics and elastomers. Long term durability of these products is excellent even when exposed to adverse environmental conditions including heat and moisture. The superior performance profile of the Master Bond UV10 and UV10TK is due to their unique chemical composition. Master Bond UV10 and UV10TK are based on a polyfunctional epoxy resin and contain an exceptionally effective latent UV curing agent system. The fast curing mechanism is triggered by any convenient source of UV light such as a 200 watt per inch medium pressure mercury vapor lamp. With commercial UV lamps, cures have been effected in very short time periods, e.g., 1 minute and less at ambient temperatures. Even with low intensity UV sources, cures can be obtained in minutes. No solvents or other volatiles are released during the curing process.