Motor Guard BB-1 Backer Blocker, Hard.
From scuff sanding E-coats to prepping blends, the Magna Backer Block distributes even pressure over the full area. Its power hooks firmly retain the scuff pad, imparting an even "tooth" over the entire panel with a single pass. Wet or dry, primers or E-coats, this is the block to scuff with. The BB-1 is sized to use 1/2 of a standard Scuff Pad and works with any brand or coarseness.
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