Cleaning Service Blog

Cleaning Tips | 2019 | Keeping Stainless Steel Shiny

Stainless steel can be a challenge to clean and keep in good condition.  Many people abuse stainless steel by using the wrong chemicals.

Stainless steel is maid “stainless” via the passivation process where  the free iron was removed from the surface of the metal using an acid solution to prevent rust.

The wrong cleaning chemicals can ruin this “passivation protection” in seconds.

No Bleach, Ammonia, or HCL

Don’t get bleach, ammonia, or any brutally strong acid (such as HCL or muratic acid) near stainless steel.

While there are specific acids we mention later that work great on stainless steel there are some that will destroy it by even being near enough to it to ruin it with black streaks from fumes alone.

Maintain

The best way to maintain stainless steel is with an oil based stainless steel cleaner that contains citric acid.  Citric acid acts as an indirect passivator as it starts to react with oxygen after a while further protecting the surface from oxidation.

Sometimes you will need to aggressively treat stainless steel that is oxidized and/or has calcium/lime buildup such as a sink or water fountain.  The best method is to use a safe acid such as phosphoric acid (QA Foamy is a product example) or oxalic acid (Barkeeper Friend) to remove this and then, after, clean off with a stainless steel spray.

Remember

Stainless steel will keep looking great as long as you follow the basics:

  • Don’t use harsh chemicals such as bleach or the wrong acids
  • Don’t clean with hard water unless you like it to look streaky
  • Don’t scrub it with abrasive pads when the right chemical is all you need
  • Use high quality oil based stainless steel spray/conditioners such as Spartan Chemical Superior High Shine vs a cheap water based stainless steel spray

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