A Guide To Glue Guns and Adhesives
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 guns heat up to around 195°C and produce a stronger bond. Also available are dual glue guns which feature a switch so that both low and high temperatures can be used for different applications.
For industrial applications, there are a broad range of heavy duty glue guns available which are designed to optimise production efficiency. These range from high output pneumatic glue guns to multi temperature units.
Glue sticks are available in various sizes for different types 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 set when they drop in temperature and this means that they can set quickly.
For industrial purposes, 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 time taken to form a bond. This varies from a couple of seconds to several minutes.
Glue guns should be turned on a few minutes before being used so that the heating element and glue stick can warm up. As the glue stick gets hot it melts and then it can be used to glue various materials together. Care should be taken when using hot glue guns as hot glue can be dangerous. Always be sure to keep your fingers away from the glue as it comes out of the nozzle.
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