Pro’s Choice “First TLC” (formerly known as First Strike) is a high performance pre-spray and spotter formulated to meet the unique cleaning requirements of new fibers including Olefin and treated nylons. “First TLC” performs well even when high heat is not available and is compatible with most enzyme based odor treatments. Dilution: Up to 16 oz. to a gallon water pH at dilution: 9.5 Container Sizes: 128 oz. Form: Liquid MSDS