1 Gallon Five Star ACID CLEANER #5 Rust Remover and for Passivating Stainless Steel (Acid Wash, local pickup only)


LOCAL PICKUP ONLY:  This is the most aggressive cleaner we sell.  A blend of nitric and phosphoric acids with low-foaming surfactants for stone/protein removal.   The nitric acid will re-passivate stainless steel surfaces by removing free iron.  #5 is for stainless only and should not be used on soft metals.   Read directions and see CAUTION and MSDS below.   Dangerous goods indeed we can’t ship it:  UN3264 Corrosive liquid, acidic, inorganic, n.o.s. (Nitric acid ; Phosphoric acid)  Class 8 (DOT) Corrosive material 49 CFR 173.136.  Mean stuff!

3 in stock



  • The most effective acid wash for beer stone and scale
  • Nitric and Phosphoric Acid Blend – Not for soft metals
  • Specially formulated to passivate and re-passivate stainless steel
  • Sold IN STORE by the 1 gallon.  DROP SHIP may be available in 4×1, 5, 15, and 55 gallon sizes
  • Use only as directed. Wear eye protection, protective gloves and clothing

SAFETY NOTES:  Signal word: DANGER.  Use only as directed.  Wear eye protection, protective gloves and clothing. May be corrosive to metals.  Causes severe skin burns and eye damage.  Keep only in original container. Do not breathe dust/fume/gas/mist/vapors/spray.  Wash hands and exposed areas thoroughly after handling.   See additional cautions on label and SDS.


Five Star Chemicals is a full service provider of cleaning, sanitizing, and lubricant chemicals. Our mission since 1980, has been to provide quality products supported by superior customer service. All products have been formulated to work on every type of brewing equipment, while also maintaining the integrity of the surface. If making high quality beer, wine, cider, or spirits is your priority, Five Star Chemicals should be your first choice for all of your cleaning and sanitizing needs.


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