3M Perfect-It Back-up Pad allows for easy attachment, quick removal and accurate centering of compounding or polishing pads. The 3M Hookit attachment system is used for these pads to enhance convenience and boost productivity with quick change of abrasive discs.Use the 3M Perfect-It Back-up Pad as part of our 3M Perfect-It system. It’s a quicker, more efficient way to get exceptional finishes on gelcoats and paints with deeper colour and gloss. Use our back-up pad for secure non-slip attachment, easy removal and accurate centring of compounding or polishing pads. It helps to remove defects more thoroughly and get a smoother, more refined finish to vehicle surfaces, thanks to the cushioning support our pads provide.