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  • Electrically operated glue guns consist of a heating element, nozzle and glue chamber.
  • Glue or caulking sticks are put in the chamber, where they are melted by heat and released through the nozzle. The adhesive cures by cooling. Cordless models are also available.
  • Some models require the operator to maintain pressure on the glue stick with the thumb. Others are self-feeding. The trigger mechanism on some models closes the nozzle to prevent dripping.
  • There are a variety of glues available—both with a gun and in replacement packages including heavy-duty types for wood joints requiring about 60 seconds drying time and lightweight for paper, etc., with shorter drying time.

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