wats the recommended heat temp for the hot plate for glass removal s8

hey everybody, I'm looking for the right temperature for a hot plate to be at for removing the glass from my LCD screen as well as a heat gun for added help if not assuming the same temperature of hot plate( a time frame for how long i can have them at that temperature before damaging it would be plus if anyone knows that too). One last thing i also need to know is the recommended glue to use for putting the glass back on the LCD screen and yes i already have a UV lamp to help heat it up once its on but i don't know how long to safely keep it under when the time comes. Lol sorry for all the questions but I'm attempting to repair my friends s8 cracked glass. i have worked on a lot of iphones but few galaxy and this is my first s8 repair.