With its good light transmission properties and optical clarity, Master Bond UV15 is widely used for a variety of bonding, coating and sealing applications in the optical, electronic and optoelectronic industries. This epoxy based UV curable system is 100% reactive and does not contain any solvents or other volatiles. It is also completely free of any oxygen inhibition.The system will cure when exposed to a UV light source with a wavelength range between 320-365 nm. It typically cures in thicknesses of a few microns to 0.015-0.020 inches in 15-30 seconds or less. It cures by a cationic reaction and produces bonds that have lower shrinkage (1-2%) and higher temperature resistance than most UV systems. Its glass transition temperature (Tg) is 90-95°C with a straight UV cure. When post cured for 30 minutes at 125°C, the Tg is 125-130°C. The service temperature range for this system is -80°F to +350°F.