As someone who works in industrial and scientific settings, I was disappointed by the United Abrasives SAIT 60089 Aluminum. It didn't hold up well during heavy use and didn't deliver the level of quality I expect from an industrial-grade abrasive..
This purchase was a waste of money. I put the sanding belt on the sander and it broke after 30 seconds. Every strap in the backpack snapped after 30 seconds. They sold me a lot of junk. I have purchased Norton brand belts and they work as expected. I can usually do an hour of loops with branded ribbons. I wouldn't recommend your site to my worst enemy