Yikes! Ya man, you need a 40-60 grit 'flapper' type wheel on your grinder I think. The belt and flat stick on round types you are burning through dont have enough 'clearance' (or something like that?) to get rid of the dust and particles that you are making while sanding, which basically means that yes, they will clog up and burn out rather quickly, as you have discovered :lol: In my exp it can also be two other things; The quality of the sandpaper, and the the speed the tool runs. Crappy paper doesn't last long, and if the tool is going too fast, even god quality paper will be short lived.
