Industrial Floor Coating
Epoxy is a term used to denote both the basic components and the cured end products of epoxy resins, as well as a colloquial name for the epoxide functional group. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups.
When considering the effectiveness of an epoxy adhesive, it is useful to analyze the general formulation of the compounds that constitute it. Epoxies are created by polymerizing a mixture of two starting compounds, the resin and the hardener. When resin is mixed with a specified catalyst, curing is initiated. Curing is the process by which molecular chains react at chemically active sites, resulting in an exothermic reaction. Covalent bonds between the epoxide groups of the resin and the amine groups of the hardener (catalyst) that arise from this combination afford for the cross-linkage of the polymer, and thereby dictate the rigidity and strength of the epoxy.
As the most widely used structural type adhesive, epoxy adhesives are commonly offered as either one component or two component systems. One component epoxy adhesives are generally cured at temperatures between 250-300°F, conditions that engineer a product of high strength, excellent adhesion to metals, and outstanding environmental and harsh chemical resistance. In fact, this product is often used as an alternative to welding and rivets.
One component systems are formulated pre-catalyzed and require only moderate heat to cure, improving efficiency and avoiding error that may result from air entrapment. Furthermore, the speed of cure is rapid—faster than two component systems.
Two component epoxy systems differ in that catalyzation occurs at ambient temperatures and can be accelerated by heat. Adding heat also promotes additional cross-linking resulting in superior properties. Two component systems are suitable for bonding most surfaces. They are considered highly stable due to their ability to withstand a constant weight or force over an extended period of time, as well as their resistance to physical and chemical influences. In addition their powerful ability to withstand a constant weight or force over an extended period of time, as well as their superb resistance to physical and chemical influences, make two-component epoxies a highly stable product.
They are extremely versatile, and can be used for bonding, sealing, coating and encapsulation across many industries including but not limited to electronics, medical devices and aerospace. Special formulations are also flame retardant, cryogenically serviceable, fast curing, high temperature resistant and more.