A275 OP™ PSA 5" Disc Roll, P120B Premium heat-treated grain. 30% – 50% faster rate. Extended life. Premium B-weight latex fiber reinforced paper backing. Tear . More flexible. Easier disc removal. Superior bond system. Optimizes grain adhesion. Extends life. Waterbased stearate No-Fil. Improves load resistance. Extends life 31462 No -