Stick diameter decides every refill, and temperature decides every material
The best hot glue guns for 2026
A hot glue gun melts a solid stick and pushes it through a nozzle, and it joins foam, card, fabric, wood and many plastics in the time it takes to cool. The stick diameter is the specification that ties a gun to its refills: mini guns and full-size guns take different diameters, and the listing states which. Temperature is either fixed — high for strength or low for delicate foams and fabrics — or switchable, and a dual-temperature gun covers both at the cost of a little complexity. Heat-up time and flow are published on the better listings; flow, in grams per minute, decides whether a long seam can be laid before the start of it sets. Power is a mains cord or a battery with a stated runtime, and a cordless gun is freer on a large model but holds its temperature for a limited time. Nozzle options — long, fine, wide — change what the gun reaches. A stand that keeps the hot nozzle off the bench and a trigger that does not drip decide whether it is pleasant to use. Hot glue and nozzles burn skin, and the maker's guidance on handling and on which materials the glue suits applies. We compare stick diameter, temperature setting, heat-up time, flow, power, nozzles and stand.