3M Pro-Pak Between Finis

3M(TM) Pro-Pak(TM) Wetordry(TM) Between Finish Coats Sanding Sheets 99421NA, 9 in x 11 in, 320A grit, 25 sht pk 3M(TM) Pro-Pak(TM) Between Finish Coats (Wetordry(TM)) can be used with water to reduce clogging and extend abrasive life. Use to sand between coats of varnish, paint or other finishes. Ideal for sanding metal for repainting or prior to primer coat.