02.08
Glue guns are available in low temperature and high temperature hot-melt versions. Low temperature glue guns heat up to about 120º C and are more suitable where a high temperature is undesirable. High-temperature units} heat up to about 195°C and give a stronger bond. Also on the market are dual glue guns which include a switch so that both low and high temperatures can be used for different jobs.
For industrial applications, there are a wide range of heavy duty glue guns available which are designed to optimise production efficiency. These range from high output pneumatic glue guns to adjustable temperature units.
Glue sticks are buyable in various sizes for different varieties and sizes of glue guns. The most common size has a diameter of 11mm. Glue sticks are also available in various lengths, from about 10cm upwards. However, most glue guns will accommodate glue sticks of any length. Hot melt and low temperature glue sticks are available for the different types of glue gun. Hot melt adhesives do not contain any solvents or water. They bond when they drop in temperature and this means that they can set quickly.
For industrial applications, different types of glue sticks are available for specialist uses. The most common diameters are 12 and 43mm. For domestic use, there are only a few types of glue sticks that are available. Glue sticks have different open times, which is the duration needed to form a bond. This varies from a couple of seconds to a few minutes.
Glue guns should be switched on several minutes before being used so that the heating element and adhesive can warm up. As the glue stick increases in temperature it melts and then it can be used to glue various materials together. Care should be taken when operating hot glue guns as hot glue can be dangerous.