The Spaniard
Professional
To use a heatgun or an oven to melt the solder paste I'm guessing the temps need to be at around 180°CI vastly prefer SMD when assembling. I also use solder paste and hot air though I did build a reflow oven that can do the job. When Apocalypse sends the multi gerbers to me I ask him to change all resistors and caps to SMD. I can assemble ten pcbs in the time it takes to assemble one with only through-hole.
Presumably this is ok for the boards to take this heat for a period of time without warping? Is there any issues to look out for when blasting a hot air gun at a solder point to melt the solder?