Epoxy Adhesives

epoxy-adhesive Epoxy is a common name for a strong type of adhesive used for sticking things together and covering surfaces, usually two resins that need to be mixed together before use. Epoxy adhesives are the better choice when performing in heat and chemical resistance than other common adhesives. Epoxies have high melting and boiling points, which makes it useful as a solver as well. One may find popular two-part epoxy adhesives for the home, workplace or hobby activities in various stores ranging in a wide selection of properties. There are several properties to these epoxies including slow or fast curing time, waterproof or water-resistant, opaque or clear and flexible or rigid. Although many people believe that all epoxies are waterproof, many of them are not recommended to be underwater for the long-term. The shelf life for unmixed two-part epoxies is long and there are many reports of epoxies sitting idly for decades and still being used successfully. However, the ones more commonly seen in stores have a one to two year shelf life as published by the product specifications. Epoxy adhesives are an important part of the “structural adhesives” or “engineering adhesives” class. These are high performing adhesives that can be seen in the construction of aircrafts, cars, boats, skis and other applications that require high strength bonds. The adhesives can be developed to fit almost any application and can be used on wood, metal, glass and even some plastics. It is better for these types of epoxies to be cured with heat, as they will be more heat and chemical resistant than ones that are cured at room temperature. Two part epoxy coatings were made specifically for heavy duty service and dry quickly to provide a tough, protective coating with great hardness. The two part epoxies are usually used industrial and automotive applications because they are more heat resistant than other paints. One of the cons to the epoxy paints would be their deterioration due to UV exposure.

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