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Harvard Chemical Rust Out, 32 oz

Grouped product items
Product Name Price Qty
Harvard Chemical Rust Out, 32 oz
Mfr. Model # 50802
32 oz     Qty: 1
Availability: Typically in stock (Details)
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We pay the shipping on this product with $350 of qualifying items (Details)

Harvard Chemical Rust Out, 32 oz (12 PK)
Mfr. Model # 508
32 oz     Qty: 12
Availability: Typically in stock (Details)
Add to My Shopping List

We pay the shipping on this product with $350 of qualifying items (Details)

  • Eliminates rust stains, mineral deposits, lime scale buildup
  • Mild, non-fuming formula
  • pH: 2.0–3.3
  • Works on carpet, fabric, and upholstery
  • Ready to use

Product Information

Get the Rust OUT!


Rust Out is a mild phosphoric acid-based cleaner specially formulated to remove the alkali born of rust, scale, and lime deposits from carpet, fabric, and non-acid-sensitive surfaces. It chemically dissolves rust, mineral scale, and lime deposits for easy, thorough rinsing.


Rust Out is much less toxic and safer to use than hydrochloric or hydrofluoric acid-based products. This mild, non-fuming acid blend is easy to use, and will quickly become a professional cleaner's favorite go-to rust remover.



In most cases it is necessary to use full strength. However, due to its high solids content application can range from 1 to 1 up to 1 to 4.


Apply to soiled area with brush or spray and allow to soak 1 to 5 minutes, then flush area with clean water.


We also suggest that when using this product or any other acid based product, the area should be neutralized with an alkaline substance after stain disappears. This can be accomplished by using baking soda 1 - 2 tablespoons per cup of water then pour over acid cleaned area.


After neutralizing this spot it should be rinsed with warm water to remove all residue.


A dip tank method can be used if suitable plastic or rubber lined tank is available. It can be heated up to 125 degrees F. Watch carefully that chemical solution does not attack the fabric being cleaned or destained.


Always pretest surface to be cleaned prior to using for any harmful action.



More Information
Chemical Type Water Based
Brand Harvard Chemical Research
Color Clear
Scent Acidic
Cleaning Method Spotting
pH 2.0 - 3.3
Material Carpet, Upholstery
Dilution Variable
Type Liquid
Category Spotters
Condition New
Spot Type Rust
Manufacturer Model Number 508
Safety Data Sheet (SDS)