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MICROCRYSTALLINE-WAX

Paint Coating Adhesives & Hot Melt Adhesives

Hot-melt adhesives are solvent-free, thermoplastic materials used in a variety of applications such as packaging, book binding, wood furniture and toy assembly, air filters, NSF grade water filters and more.

Also known as glue sticks, these liquefied thermoplastic adhesives are available in both low and high-temperature versions. Low temperature hot melt adhesives are applied at 250°F/120°C temperatures, which makes them ideal for bonding electronics, plastics, cloth and other heat sensitive materials. High temperature hot melt adhesives are applied at 380°F/193°C and produce a stronger bond than the low temperature hot melts.

Hot melt adhesive is applied using a small, handheld applicator or a large automated system with multiple automatic applicators. They are applied in the molten state at temperatures varying from 120°C to 180°C / 250°F to 380°F.

Carmel supplies these products in a solid chicklet, or block form. We offer compositions which are particularly useful for toy article application because of our use of safe, naturally occurring terpene solvent.

Applications

Hot melt adhesives are widely used in the packaging and shipping industries. The most common applications include:

  • General packaging
  • Securing wood supports and reinforcements
  • Repacking chipboard
  • Point-of-purchase displays
  • Trade exhibits
  • Bonding waxed surfaces

EVA-based hot melt adhesives are ideal for general purposes with no specific bonding requirements.

EVA-based hot melt adhesives are economical products with good shear strength, commonly used in the packaging industry. EVA-based hot melt adhesives are price competitive and have thus become the most popular hot melt adhesives on the market.

Why use hot melt adhesives for packaging?

  • Material is less expensive – typically cost 50-75% less than packaging tape
  • Application flexibility – large variety of material options and nozzle sizes
  • Ideal for high speed case & carton assembly – rapid set time
  • Continuous operation
  • Provides higher structural strength – important for heavy packages
  • Long-term bonds – key for shipping strength
  • Customer experience – open package without knife or scissors
  • Appearance – professional looking seal, no cracks or folds in tape
  • Aggressive hot tack rapidly achieves handling strength
  • Short open time allows for fast assembly lines
  • Securely bonds difficult to seal substrates such as lightly waxed surfaces
  • Low viscosity prevents stringing even at fast production speeds
  • Operator friendly with low to no odour
  • Able to bond to a wide range of substrates
  • Clean machining
  • Approved by CFIA and FDA

Carmel also offers hot melts based on a polymer range obtained through a polymerisation technology known as metallocene catalyst polymerisation. The metallocene polymer has some unique properties such as outstanding heat stability, narrow molecular weight distribution and a sharp melting point.

This results in a fast-setting hot melt adhesive designed for packaging and shipping applications. It is ideal for bonding corrugated fiberboard cartons, wood, particle board, chipboard and foam.

The use of this new polymer technology in our hot melts results in:

  • Increased heat stability
  • Prevention of char
  • Viscosity stability at working temperature
  • Light initial colour and colour stability
  • Superior machineability
  • Flowing performance and superior jetting
  • Potential for higher production line speeds
  • Reduced consumption of hot melt
  • Excellent bonding
  • Improved fibre tear compared to EVA based products
  • Unparalleled adhesion to difficult substrates like PE and PP
  • Low and high temperature resistance
Carmel Industries