The 8 Best Acid Cleaners

Updated December 15, 2016 by Daniel Imperiale

8 Best Acid Cleaners
Best High-End
Best Mid-Range
Best Inexpensive
We spent 24 hours on research, videography, and editing, to review the top choices for this wiki. Some of these acid cleaners are highly dangerous and toxic, coming in concentrations as high as 99%, so make sure you select the right one for your needs. They are particularly good as cleaners for everything from hard water scale, to grout, to concrete pavers and other masonry surfaces, and for removing mold or mortar residue. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best acid cleaner on Amazon.

8. Miracle Sealants PHOS QT SG

A milder solution that many other cleaners, the Miracle Sealants PHOS QT SG is based around a phosphoric acid, making it safe for use on pre-cast concrete pavers and other masonry surfaces that could suffer under more caustic mixtures.
  • covers 2500 square feet per gallon
  • effective on flamed granite
  • too weak for heavier stains
Brand Miracle Sealants
Weight 2.8 pounds
Rating 4.1 / 5.0

7. Miracle Sealants Heavy Duty

One look at the size of the jug that contains the Miracle Sealants Heavy Duty ought to tell you that it's meant to last you a long time. The highly concentrated hydrochloric acid formula is fast acting and dilutable, but it is not for use on polished stone.
  • useful for interiors and exteriors
  • removes efflorescence
  • can not penetrate porcelain pores
Brand Miracle Sealants
Weight 2.6 pounds
Rating 4.1 / 5.0

6. Custom Building Products TLSAC1

The concentrated sulfamic acid crystals contained in the Custom Building Products TLSAC1 allow you to dilute your cleaning agent to suit the task at hand, whether it be removing mold and hard water deposits from grout or mortar residue from tile.
  • safe on clay pavers
  • adds a layer of shine
  • can damage marble and glazed tile
Brand Custom Building Product
Model TLSAC1
Weight 1.5 pounds
Rating 4.2 / 5.0

5. Misty Bolex 23

Designed for use primarily in toilets and urinals, the Misty Bolex 23 is a 23% hydrochloric acid cleaner in a proprietary blend with a detergent, wetting agents, and a rinse additive that combine to make porcelain shine, in particular.
  • dissolves organic encrustations
  • helps clean traps and lines
  • high cost for its contents
Brand Misty®
Model AMR R925-12
Weight pending
Rating 4.2 / 5.0

4. FDC Pure Oxalic Acid Powder

Though it doesn't have the same name recognition as other acids, the FDC Pure Oxalic Acid Powder is derived from natural ingredients such as buckwheat and rhubarb. It's effective enough to work on rust and other deep-set filth, but in lower concentrations it's very gentle.
  • good bleaching agent
  • safe for use in the garden
  • jar makes it hard to distribute
Brand FDC
Model pending
Weight 2.1 pounds
Rating 4.0 / 5.0

3. Duda Energy Phosphoric Acid

The 950ml bottle of Duda Energy Phosphoric Acid provides you with an 85% concentration of an incredibly corrosive material that's useful for drain clearing and two-stage biodiesel processes. It's a dangerous chemical to keep in your home, however.
  • child-resistant cap
  • colored solution
  • too harsh for much home cleaning
Brand Duda Diesel
Model pending
Weight pending
Rating 4.6 / 5.0

2. Duda Energy Hydrochloric/Muriatic Acid

The Duda Energy Hydrochloric/Muriatic Acid comes at a concentration of 32%, ideal for removing the rust from steel and iron, as well as for cleaning concrete. Its purity also makes it suitable for the production of PVC products.
  • clear and colorless
  • comes in an hdpe bottle
  • highly toxic if swallowed
Brand Duda Energy
Model hydroc
Weight pending
Rating 4.7 / 5.0

1. Milliard Citric Acid

Milliard Citric Acid is a 100% pure, food grade, non-GMO acid that works well as a kettle descaler, grout cleaner, and bath bomber, in addition to its myriad of culinary and household uses. Its pH level makes it naturally antibacterial.
  • multi-use product
  • safe to consume
  • chemical-free formula
Brand Milliard
Model pending
Weight 6.2 pounds
Rating 4.9 / 5.0

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Last updated on December 15, 2016 by Daniel Imperiale

Daniel is a writer, actor, and director living in Los Angeles, CA. He spent a large portion of his 20s roaming the country in search of new experiences, taking on odd jobs in the strangest places, studying at incredible schools, and making art with empathy and curiosity.

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