
Hot Melt Adhesives (HMA), popularly known as hot glues, are a type of thermoplastic adhesives. These adhesives melt and flow after heating above 80 degrees Celsius and do not require curing for solidifying after application. These adhesives are generally used with a hot glue gun for heating and dispensing the hot melt adhesive (HMA). The hot glue gun has a loading chamber where the hot melt adhesive (HMA) is heated to melting point. The molten plastic adhesive is then dispensed through a heated nozzle by the mechanical trigger mechanism of the hot glue gun. The hot melt adhesive (HMA) solidifies within seconds to minutes (or to infinity in case of pressure sensitive hot melt adhesives) depending upon its composition. The hot melt adhesives (HMA), unlike solvent based adhesives, do not lose their thickness or density after solidifying and provide strong adhesion. The market is driven by increasing demand from the end-user industries such as packaging, labeling, building & construction, bookbinding, woodworking, non-woven, automotive, transportation and footwear industries. Additionally, general shift away from solvent based adhesives due to harmful effects of volatile organic compounds released from these adhesives is expected to fuel market growth over long term. Constant pressure from regulatory bodies such as REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) and EPA (Environment Protection Agency) is expected to limit the usage of solvent based adhesives in an attempt to reduce adverse impacts on environment, thereby supporting the hot melt adhesives (HMA) market. Furthermore, strong adhesion without the need to cure the adhesive after application is an added advantage for developing easier and cheaper end-use processes.