Hello everyone, rescently I started building out of foam, and found that I needed a high temp glue gun. So, I bought a adtech hi temp gun for about $15. It worked for the small jobs, and I had no problems. Until I started to put glue on most of the wing... When about half of the glue stick is put through the gun, it stops working. I can push on the glue stick really hard, and the glue wont come out. So, I went to canadian tire, and bought another one for $15, but this time it's from master craft. They usually make pretty good stuff. Well, I have the same problem, although with this one after about 3/4 of the glue stick goes through, the glue still comes out, but I have to press the trigger really hard, and it doesn't seem to be the same temperature. Both of them for sure have a good temperature at the beginning, and the glue gun is still hot after it stops working. After I let them heat up again, the same thing happens. One is 40 watt, the other 60.

Any Ideas what the problem could be? Or is this normal? I also tried 2 diferent glue sticks, one from adtech the other from mastercraft. I tried to let it heat up for 5 or 10 or 15 minutes, with the same outcome. I guess there is not much to fix inside, so I can buy another one, or have them both heated at once, which should be enough. I just want to make sure that this is not normal, or that there is no obvious reason for this.

Thanks for any help, Hubert