Non-solvented Two-component Epoxy Systems

摘要

Epoxy systems are widely used in many industries. Their use is based upon their excellent adhesion to steel and concrete, good mechanical properties, erosion-corrosion resistance and chemical resistance. Non solvented two-component epoxy systems consist of a resin base and a solidifier (also known as hardener or activator). These products contain little or no volatile organic compounds (VOC) and cure through a polymerization process. Resin bases are usually more viscous than their respective solidifier. This article will focus on the application of non solvented two-component epoxy systems using airless spray. Airless spray is a technique which forces a material through a tip or aperture without the need for compressed air to achieve break-up or atomization. Two main airless spray systems are in general use for spraying non solvented two-component epoxy systems: single and plural component. These systems are not standardized; most commonly they are custom made to suit specific applications.