Review on 3M 25150P G Advanced 11-Inch Sandpaper by Brian Olson

I bought these because of the price and the fact that they are made by 3M who are usually good quality. I divided them into quarters for the B+D orbital sander. No matter what type of wood I'm sanding, 30 seconds and they crack horribly, which is annoying. I recently made some shelves for my boy's toilet that were made from 10 pieces of chipboard, had to change the sandpaper 6 times and that's just sanding the corners. Will definitely not buy again. I will be using the Gator grip from now on, I've never had a problem with this brand. The picture shows 30 seconds of loops.