What is epoxy glue and what is its use?
One of the most important glues in history since the beginning of using glue is epoxy glue. Epoxy adhesives are based on epoxy resin, which show various properties and characteristics by changing the resin grade and adding fillers such as metals, ceramics, etc. Epoxy adhesives have been used in the industry for half a century, they have very good chemical and physical properties and are usually produced as two components (resin and hardener). The final cured products are called epoxy resins and is also a colloquial name for the epoxide functional group. Epoxy resins, also known as polyepoxides, are a class of polymers and reactive polymers that contain epoxide groups. Reactants include polyfunctional amines, acids (and acid anhydrides), phenols, alcohols, and thiols (commonly called mercaptans). These common reactants are often called hardeners.
Advantages of using epoxy adhesives
Among the advantages of epoxy adhesives compared to other silicone adhesives and polyurethane adhesives, the following can be mentioned:
• Low shrinkage after drying
• No gas release in drying time
• compatibility with a wide range of materials
• suitable adhesion to many materials
• chemical resistance and corrosion resistance
• high resistance to erosion
• suitable insulation for Electric cables
• Capable of drilling, turning, sanding and grinding
• Absorption of shock and vibration at the place of application
The most important types of epoxy adhesives
Metal epoxy glue: As the name suggests, metal epoxy glue is only used for purposes related to metal objects. This type of metal glue is two components and is used by combining two components. Metal epoxy glue is used to bond metals such as: copper, iron, aluminum, zinc, titanium, steel, and brass, and is used to repair holes and leaks in various metal products and fill metal edges.
Fiberglass epoxy glue: Fiberglass epoxy glue, which consists of two components, epoxy and hardener, is used on fiberglass and greatly increases the resistance of fiberglass against thermal and mechanical factors. win. This category of epoxy adhesives is resistant to water and high temperature and they do not face any rotting problem over time. Other applications of fiberglass epoxy adhesives in the industry include making all kinds of composites, all kinds of Replicas and manufacturing of drones and aviation replicas and their parts, automotive industry and manufacturing of all types of unilite. Other unique features of this glue include high tensile strength, high thermal and chemical resistance, excellent adhesion to all types Very high levels and resistance to wear.
Concrete Epoxy Adhesive: Concrete is one of the main materials required by the construction industry, which gives the most strength to the structure and building and keeps it stable. Despite the advantages and very high strength of concrete, it also contains a series of weaknesses that have forced many researchers to solve these problems as quickly as possible. One of the biggest scientific advances in the construction industry is the production of epoxy concrete glue, which stunned everyone and was unbelievable at the beginning.