What is the difference between hot melt and cool melt glue?

Hot melt and cool melt glues are two types of adhesives used in various industries. Both types of glue are thermoplastic, meaning they can be melted and solidified repeatedly. However, there are significant differences between the two types of glue, which affect their suitability for different applications.

Hot Melt Glue

Hot melt glue, also known as hot glue, is a type of adhesive that is applied in a molten state. It is heated in a glue gun and then dispensed onto a surface where it cools and solidifies within seconds. Hot melt glue is commonly used in the packaging industry, for sealing cartons and boxes. It is also used in the woodworking industry, for bonding wood and other materials.

Hot melt glue has several advantages. Firstly, it has a fast setting time, which makes it ideal for applications where quick bonding is required. Secondly, it has a high bonding strength, which means it can be used to bond a wide range of materials. Finally, hot melt glue is easy to apply, and it does not require any special equipment or training.

Cool Melt Glue

Cool melt glue, also known as cold glue, is a type of adhesive that is applied in a solid state. It is not heated, but rather it is applied using a glue gun or an applicator. Cool melt glue is commonly used in the paper and printing industry, for bonding paper and cardboard. It is also used in the woodworking industry, for bonding wood and other materials.

Cool melt glue has several advantages. Firstly, it has a slower setting time, which means it can be repositioned before it sets. Secondly, it has a lower operating temperature, which means it can be used on heat-sensitive materials. Finally, cool melt glue has a lower viscosity, which means it can be applied more precisely.

Which One to Choose?

The choice between hot melt and cool melt glue depends on the application. Hot melt glue is ideal for applications where quick bonding is required, and where a high bonding strength is needed. It is also suitable for bonding a wide range of materials. Cool melt glue, on the other hand, is ideal for applications where repositioning is required, and where a lower operating temperature is needed. It is also suitable for bonding heat-sensitive materials.

In conclusion, both hot melt and cool melt glues are effective adhesives that are used in various industries. Each type of glue has its advantages and disadvantages, and the choice between the two depends on the specific application. It is important to choose the right type of glue to ensure a strong and durable bond.