König’s most durable wax filler. This filler was primarily developed to repair the most severe damages found in high traffic areas. It may be used on cabinets, furniture, countertops, flooring, windows, and doors. Hard Wax PLUS is UV resistant for use in the most severe conditions, including exterior applications. Our innovative process also allows you to mix the colors while you melt the Hard Wax PLUS into the damage using the Hot Knife. Leveling is simplified by using the Special Scraper or Metal Planer. After the repair is completed, seal with a clear lacquer. For interior and exterior applications.