"CONCENTRATED HEAVY-DUTY LIQUID CLEANER, COMPLETELY WATER SOLUBLE. CLEANER IS SAFE FOR COPPER, MILD STEELS, ADMIRALTY BRASS, 304 AND 316 STAINLESS STEELS, PLEXIGLASS, HD POLYETHLENE, HD POLYPROPYLENE, PVC, FIBERGLASS, BUNA N, POLYTETRAFLUOROETHYLENE AND VITON. THE PRODUCT IS CAPABLE OF BEING USED IN A STEAM CLEANER, HOT WATER WASHER, OR MANUALLY APPLIED. FOR LIGHT TO MEDIUM JOBS THE PRODUCT MAY BE DILUTED WITH 10-20 PARTS WATER FOR USE IN A STEAM CLEANER OR HOT WATER WASHER. THE SAME DILUTION RATES APPLY IF THE CLEANER IS APPLIED MANUALLY"