To prevent overnight frost or light ice - Spray uniformly on the surface to protect. Repeat every 8-12 hours as needed. To remove light frost or light ice-Spray across surface, working from the top to the bottom. Frost will melt in 10-15 seconds; light ice will soften and melt within a minute. For ice, repeat spray as needed, scrape if desired. To remove heavy ice accumulation - spray generously from top to bottom several times in 30-second intervals to soften or weaken the icy surface. If necessary, use a scraper to horizontally score the ice, allowing the Ice Remover to work more efficiently. Ice up to 1/8” thick will usually soften in 2-3 minutes for easy removal. Uncle Steve's™ Ice Removers unique water repellent barrier will instantly be created on any cleaned surface to retard further ice and frost adhesion, making subsequent removal even easier! Use daily when adverse winter weather conditions exist. All residues will easily wash away with a water rinse.