Description Used in the 3M™ Dry Primer Sanding System. When sanding body filler, Dry Guide Coat helps technicians ensure the filler is flat (no ripples) and that the body styling lines and contours are correct. It can also be used to make sure the entire primed area is sanded prior to applying a top coat. And for refilling 3M also have Dry Guide Coat Replenish Cart sold separately.
