Sanding speed alert

One of the scroll saw forum members posted an alert about the flexi-pad sander, available from Klingspor. He used it at a speed of about 3700 rpm and the velcro melted! Although it does say in the catalog not to use it above 1500, I never paid much attention to it, since the speed of the average drill press is in that range. However, if you were planning to use it with a faster motor, please don't. Klingspor replaced the sander, twice, which speaks well for their customer service, but it's not an experience you'd want to have.