UV - Curing system

The main advantage of use of organic-inorganic hybrid coating systems is the use of low temperature radiation assisted curing for densification of coatings. The importance of ultraviolet (UV) curing especially realized when functional coatings like scratch resistant coatings, antireflective coatings etc. need to be cured on temperature sensitive transparent plastic substrates like polymethylmethacrylate (PMMA) and polycarbonate (PC). The unit is conveyorised having three lamps emitting UV radiation. The power of each UV lamp can be controlled individually. The centrifugal blowers attached to each lamp help to cool the substrate and remove the volatile organic by-products upon UV irradiation. A part of the equipment (substrate feed in) is placed inside the clean room and the lamps along with the hoods are placed outside the clean room. The conveyor belt is capable of an automated reverse motion, so that once curing has been completed during the forward motion of the belt, the cured substrate is brought back into the clean room due to the reverse motion of the conveyor belt.