This is a USC21002 Half Time Tube 24oz. One-Stop filler & glazing putty. Cut your repair time on half! Half-time is formulated to file & glaze in one application. Cutting your repair time & sandpaper useage in half. Ideal for all filler & putty repairs adheres to a variety of substrates; including galvanized. Excellent sanding & feathering. Stain-free & tack-free.