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. Like most UV systems, the product will cure quickly and easily 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 low shrinkage (1-2%) and high temperature resistance. 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. The system has resistance to a wide variety of chemicals including water, acids, bases, fuels and many solvents. It features good physical strength characteristics and electrical insulation properties. The product's low viscosity allows it to be spin coated. It has good adhesion to a wide variety of substrates including plastics, glass and many metals. It is available in syringes, ½ pints, pints, quarts, gallons and 5 gallon containers.