Bunch of things will do it but agree 80G is pretty coarse and prime suspect. Other factors are be lack of adhesion of top coat, humidity, dust or other contamination.
60-80G is like shaping grit to me, pretty much exterior only for big chips and nasty stuff. Usually ROS/power. 150-200G is my go to for typical paint by hand to feather stuff and remove dust nibs.
LOL forgot I was in beast mode and posted those pics... Here's a shot of the finished. HUGE thank you and shout out to Rich
chopsaw
for the architectural trim guidance!
60-80G is like shaping grit to me, pretty much exterior only for big chips and nasty stuff. Usually ROS/power. 150-200G is my go to for typical paint by hand to feather stuff and remove dust nibs.
LOL forgot I was in beast mode and posted those pics... Here's a shot of the finished. HUGE thank you and shout out to Rich
