105067 Pro-Grade Color-Change Putty for Filling Minor Dings, Scratches and Low Spots in Aluminum, Fiberglass & More, Easy Mix Hardener Included 13 Fl Oz. Durable and Strong: Once cured, the putty creates a strong, durable bond that stands up to sanding, priming, and painting, providing long-lasting results that ensure your repairs are solid and professional-looking.