3M™ Flowable Finishing Glaze works well on galvanized, aluminum and throughly cured and sanded factory-applied paint surfaces. Minimizes staining that can occur with basecoat/clearcoat systems over body filler. This flowable, brushable product cures tack-free in 30 minutes. With the included 3M™ Cream Hardener, this is a two-component, stain-free, tack-free, self-leveling repair putty. Designed for use as a skin coat over plastic filler to fill pinholes, sand scratches, low areas or other imperfections.