Spray surface protector provides a shield from grass, dirt, and rust buildup on mowers. Can be used on plastic or metal. Reduces grass clumping and is great for grass chutes and collection systems. Use only on cool mowers with spark plug disconnected. Apply to clean underside of deck and let dry 15 to 30 minutes. For best results, apply a second coat and reapply throughout the season for maximum performance. Also great for snow throwers, string trimmers, shovels and more.