What are the common hot melt adhesives

It is crucial to choose the appropriatehot melt adhesivefor each application. The adhesive required to complete a specific task may vary greatly, so it is important to understand which adhesive is most suitable for your application.

The five commonly used types of main polymer substrates are the main components of our paper boxes and box packaging hot melt adhesives. The most important thing is to determine your adhesive requirements based on performance rather than the base polymer. However, many users and suppliers use base polymers as their hot melt adhesive type labels. If you are already using hot melt adhesive, understanding the main base polymers can help you understand its compatibility.

1) EVA (ethylene vinyl acetate)

EVA is one of the original polymer base materials used in packaging and industrial hot melt adhesive standards. Today, it still produces highly competitive and high-performance packaging hot melt adhesive. This base material provides one of the most extensive properties in almost all current applications and is the best and/or primary choice for many applications. It is a hot melt adhesive suitable for low temperature and room temperature.

2) Polyethylene

These basic polymers are suitable for most paper box, cardboard box, and pallet sealing applications. Adhesive based on polyethylene polymer has low odor, light color, and is usually easy to peel off from metal. If it comes into contact with equipment, it is easy to clean. It is not suitable for substrates that are difficult to bond and is only used at room temperature.

3) Metallocene

Metallocene polymers were introduced in the 1990s, and combining these polymer matrices with other high-quality components can provide higher stability in heating applications and storage temperature strength under extreme cold and hot conditions. This disruptive leap in reducing coking and decomposition caused by thermal exposure, while expanding thermal and cold bonding properties, makes them the fastest-growing polymer foundation since then.

4) APAO (amorphous poly alpha olefin)

APAO adhesive is most suitable for areas with longer opening times or where it needs to be bonded to plastic. These adhesives have soft, sticky and flexible texture, making them an excellent choice for assembling products including adding foam protection corners for corrugated paper packaging and bonding plastic corrugated boxes.

5) Polyamide

These adhesives perform well in situations where high temperature resistance, oil resistance, solvent resistance, or rapid assembly strength is required. This makes them an excellent choice for filters, wood, and other high-performance assembly applications. These adhesives require high application temperatures, typically around 400F, and have thermal stability at this temperature.