Encyclopedia & FAQ's

DIY Frequently Asked Questions / What’s the difference between PSA sandpaper and hook-and-loop sandpaper?


PSA has a sticky back and is good to be used on large jobs that are likely to wear out the sandpaper. Hook-and-loop paper uses a fuzzy backing that sticks to the bottom of a sander. It can be pulled off and reused before the abrasive on the paper wears out.