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Common Industrial Adhesives and Their Features


Industrial Adhesives are the sticky substances that stick or bind two surfaces by the process of adhesion and cohesion. They are liquid or semi solid and are derived from some natural sources or may be synthesized artificially. They may be used to join two substances of the same material or of different materials, and the materials may be thin sheets or huge substances. Adhesive manufacturers make adhesives of different types and strength depending upon the material or the industry which is going to use it. This means that this glue is made with a strong customer focus. These sticking solutions work on the technique of adhesive bonding in which a layer of the glue is applied between the two surfaces of different materials to give them a strong bonding.

There is not a single manufacturing industry in the world which does not require a substance to keep all their assembled parts in place. It is here that the use of industrial adhesives is required. May it be an industry manufacturing cars, aircrafts, computers, laptops, refrigerators or air conditioners; they all require some type of special adhesives to assemble their parts. This is no easy task as such on the part of the manufacturer. They have to continuously talk out to the company for which the sealant is being manufactured and try to give out the product totally up to their expectations and necessity. For this, adhesive manufacturers carry out constant research work and come up with inventions to upgrade the quality of their products.

Resins are categorized on the basis of their compositions, cure (process of hardening) mechanism or adhesive properties. They are the long chains of molecules being linked together by covalent bonding called as the polymers and can be classified as thermoplastic or thermosetting resins. Thermoplastic resins are capable of being molded and re -molded at very high temperature whereas thermosetting resins cannot be re - molded after being cured. Industrial adhesives make the use of some thermoplastic ones such as polyvinyl acetate or PVC, cyanoacrylate also called as superglue, polyamides and silicone resins. This class shows poor resistance to heat and creep, but are oil resistant. On the other hand some of the thermosetting resins are epoxy, polyurethranes and phenolic resins.

Besides resins, the other types of sealants are hot melt, contact spray, acrylic, anaerobic adhesive, conductive, epoxy adhesive, and pressure adhesive. Of all these types, the hot melt variety has excellent adhesive bonding power and can be hardened or softened by the user as per his desire. So even if the user makes a mistake while construction, he can very well rectify it by melting and re-molding it. Contact spray is used for temporary bonding as well as permanent bonding. They are waterproof, transparent and Eco-friendly. Acrylic ones take some time to dry and set. As the name itself suggests, anaerobic adhesives set even in the absence of oxygen. Automobile and aircraft industries use epoxy adhesives. So we see that there are various types of industrial adhesives that are used in different industries, each specific to its own requirement.