The 3M™ Hookit™ Paper Disc 245 has a stiff paper backing which gives a strong support a long life. They are made from heat resistant resin to prevent the premature "burning". Use 3M™ Hookit™ Paper Disc 245 for initial and intermediate surface preparation. Our 245 paper discs have a strong E-weight backing that provides long product life. These discs are resin bonded to prevent premature ‘burning’. 245 discs utilise the 3M™ Hookit™ Attachment System for easy application and removal.