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what is hot melt adhesive

Update:       Hot melt adhesive (HMA), also known as hot glue, is a form of thermoplastic glue, usually sold in the form of sol...
Summary:Jan 30,2021
      Hot melt adhesive (HMA), also known as hot glue, is a form of thermoplastic glue, usually sold in the form of solid cylindrical rods of various diameters, intended to be applied using a hot glue gun. The spray gun uses a continuously working heating element to melt the plastic glue. The user can push the plastic glue through the spray gun through the mechanical trigger mechanism on the spray gun or directly use finger pressure. The glue squeezed from the heated nozzle is initially hot enough to burn and even foam the skin. When the glue becomes hot, it becomes sticky and solidifies in a few seconds to a minute. Hot melt adhesives can also be applied by dipping or spraying, and are popular among hobbyists and craftsmen. They can be used for fixation or as an inexpensive alternative to resin casting.
      In industrial applications, hot melt adhesives have several advantages over solvent-based adhesives. Reduce or eliminate volatile organic compounds, and eliminate drying or curing steps. Hot melt adhesive has a long shelf life and can usually be discarded without special precautions. Some of the disadvantages include the thermal load of the substrate, the use of substrates that are not sensitive to high temperatures, and the loss of bond strength at high temperatures until the adhesive is completely melted. This can be reduced by the use of reactive adhesives, which are further cured after curing, for example by moisture (for example, reactive polyurethane and silicone) or by ultraviolet radiation. Certain HMAs may not be resistant to chemical attack and weathering. HMA does not lose thickness during curing; solvent-based adhesives may lose up to 50-70% of layer thickness during drying.
      Hot melt adhesives have a wide range of uses and types. Generally, hot melt adhesives are applied by extrusion, roll coating or spraying, and the high melt adhesive viscosity makes them very suitable for porous and permeable substrates. HMA can bond a variety of different substrates, including: rubber, ceramic, metal, plastic, glass and wood.
      Nowadays, there are many different types of HMA (hot melt adhesive), which can be widely used in many industries. For hobbies or craft projects, such as assembling or maintaining remote control foam model airplanes and artificial flowers, hot melt glue sticks and hot melt glue guns can be used to paste adhesives. For use in industrial processes, the adhesive is provided in the form of a larger rod and glue gun, and the adhesive has a higher melting rate. In addition to hot melt rods, HMA can also be delivered in other forms, such as pellets or powder hot melt materials for bulk melt processors. Traditionally, the larger application of HMA is to use pneumatic systems to provide adhesives.
Examples of industries using HMA include:
     Close the folding of corrugated boxes and cardboard boxes in the packaging industry.
     Spinal bonding in the binding industry
     Contour packaging, product assembly and lamination applications in the woodworking industry.
     Disposable diapers are manufactured by using HMA to bond nonwoven materials to the backsheet and elastic materials.
     Many electronic equipment manufacturers may also use HMA to fix parts and wires, or to fix, insulate and protect the components of equipment.

     RUICO is a company specializing in hot melt adhesive material, and has cooperation with mining companies in many countries. If you have any needs in this regard, please contact us

Jimmy yuan

Zhejiang Ruico Advanced Materials Co., Ltd. (Stock No.873233)

Add: No.188, Liangshan Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province, China 313018

Phone: +86 (572) 2903236

Fax: +86 (572) 2905222

WhatsApp: +86 15088303595

Website: www.ruicoglobal.com 

Email:[email protected]

Zhejiang Ruico Advanced Materials Co., Ltd.
Ruico Advanced Materials is a famous china flame retardants suppliers and acrylic resins manufacturers, ruico has successively obtained “high-tech enterprises”, “provincial enterprise r&d centers”, “provincial innovative demonstration small and medium-sized enterprises”, “south taihu elite plan leading innovative enterprises”.
● Strong research and development capabilities and comprehensive product line
● The first domestic fully automated operating system platform independently designed and developed by China
● Professional testing laboratory platform
● The product meets various domestic and international professional testing standards and environmental protection requirements.
● On-time and fast delivery ability, professional customer service system

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