According to Wikipedia, it is either 120ºC (250ºF) or 195°C (380°F), depending on whether you used the high temp or the low temp glue.

It's possible that if you used the high temp glue you might be all right up there in Norway, but in certain parts of the States on a hot summer day in the sun, even the high temp glue wouldn't survive in the headliner of my car.