Dual-curing adhesive UV22DC80-1Med

epoxyfor metalglass

Key Features - Low viscosity - Minimal shrinkage upon curing - Superb optical clarity - Cures at 80°C in shadowed out areas Master Bond UV22DC80-1Med is a nanosilica filled, dual cure epoxy based system. It is formulated to cure readily upon exposure to UV light and most importantly it will cross-link in shadowed out areas with the addition of heat. The logic in developing this kind of product is that UV curables will cross-link rapidly and thoroughly upon exposure to the light, but it will not cure in areas where the material is not exposed to the light. Having a dual cure mechanism allows those areas not exposed to the light being curable with the addition of heat. The thermal part of the cure is achieved at a user friendly 80°C (particularly when working with plastics). Dual cure systems are particularly useful for rapidly fixturing parts with the UV portion of the cure and then finishing the process by heating. This lower viscosity system features a cationic cure mechanism (for the UV portion). This combined with being a nano filled system confers an exceptionally low shrinkage and outstanding dimensional stability. UV22DC80-1Med is not oxygen inhibited. After polymerizing, it has many advantageous properties. It bonds well to a wide variety of substrates including metals, glass, ceramics and most plastics. UV22DC80-1Med has very good chemical resistance to many acids, bases, fuels and solvents. It is a superb electrical insulator, also it is able to withstand rigorous thermal cycling. The service temperature range is -60°F to +350°F.