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1 Gal. RustAid Outdoor Rust Stain Remover

  • Biodegradable formula that is environmentally friendly
  • Dissolves rust stains on contact
  • Safe for indoor surfaces
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Product Overview

Goof Off RustAid Outdoor Rust Remover spray works on a variety of outdoor surfaces to neutralize and dissolve tough rust stains caused by well water, lime scale and calcium deposits. RustAid is safe for use on a variety of outdoor surfaces including concrete, stucco, wood, fiberglass, brick, painted surfaces and vinyl siding. Apply to an exterior wall, walkway, foundation, driveway, fence, shed, or lawn furniture. This rust eraser and hard water stain remover will leave your surfaces looking renewed and is safe for plants and grass. To use, simply spray on and rinse off, no need for scrubbing. Watch as it eliminates tough stains and gets other outdoor surface rust out like magic. Read and follow all label directions.
  • GOOF OFF RUSTAID OUTDOOR STAIN REMOVER safely removes rust stains from a variety of outdoor surfaces
  • REMOVES RUST: Works the first time to remove rust from exterior walls, walks, foundations, driveways, fences, sheds and lawn furniture
  • SAFE FOR USE on concrete, stucco, wood, fiberglass, brick, painted surfaces and vinyl siding
  • NEUTRALIZES & DISSOLVES RUST STAINS: Effectively neutralizes and dissolves rust stains caused by well water, lime scale, and calcium deposits
  • EASY TO USE: Simply spray on and rinse off, no scrubbing needed
  • FOR OUTDOOR USE: This rust remover spray powers through the toughest stains in your outdoor spaces
  • PLANT SAFE: Safe to be used near plants and grass
  • 1 GALLON: Packaged in a gallon-sized bottle for frequent outdoor rust removal

Additional Resources

From the Manufacturer

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Product Size1 GA-Gallon


Concentrated or Ready to UseReady to useFeaturesBiodegradable
Helps RemoveRustPack Size1
Product FormLiquidRecommended SurfacesConcrete,Grout,Tile

Warranty / Certifications

Certifications and ListingsNo Certifications or ListingsManufacturer WarrantyN/A

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Customer Reviews

  • 4.5
    out of 816 reviews
  • 87%recommend this product
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Showing 1-10 of 816 reviews
Doesn't work
Two applications, full strength with a garden sprayer. Waited for stains to disappear; only the lightest surface stains did. Returned the last container. Doesn't remove dark, shallow well sprinkler rust stains.
Response from GoofOffExpertJun 15, 2022
Thanks for taking time to submit your review. Your satisfaction is important to us. Please call us at 1-888-326-7743 to discuss in more detail.
    Had a air conditioner leak rust into bathtub along all surfaces with the exception of near wall. Tried several products with lots of elbow grease results were poor to say the least. Bought goof off read the simple instructions presto like magic the rust strains were magically disappearing. I know your probably thinking that the other products assisted in the removal. However, it worked just as good on areas which were not worked on before this product was applied. Mostly one application.
      • Recommended
      1 found this review helpful
      WOW!! This is incredible.
      What can I say but WOW!!! Sidewalk has been orange since moving in almost 2 years ago. I irritated me and power washer couldn't get this out. Sprayed on and never even rinsed it off for power washing it soon. Pics speak for themselves.
        • Recommended
        Amazed at how fast it works. We have about 300 feet of sidewalk in front of our house, applied about 8 gallons to do whole sidewalk and gutter along the street. Just spray on and let it sit about 5-10 minutes, then hit it with the pressure washer. Even looked good before hitting it with the pressure washer. Still a little staining left. Will try another application later. But even the pressure washing companies we have hired in past couldn’t get any cleaner than this.
          • Recommended
          Worked perfectly
          This product worked perfectly on our white brick. This is after one use, letting it sit for 15-20 minutes before rinsing. Be sure to use proper PPE when using.
            • Recommended
            Rust Off
            Works as it should. Take away the rust spots immediately from any surface.
            • Verified Purchase
            All gone with Goof off RustAid OUTDOOR
            Currently, we have a water well attached to our home and a yard with an irrigation system layout. This well water is full of RUST WATER. We keep the well inside a water shade and had a water pipe burst. We soon found "Goof OFF" as it had worked well in the past at removing the glue. The Price was right and this RUSTAID "Outdoor" performed much better than I had expected. At 4:00 PM I filled a Spray bottle and began spaying the outside door, walls (SEE PHOTOS ATTACHED) where the rust was most noticeable. The next morning about 9:00 AM after applying the first coat and was truly blown away by what the product had done. I would say in the attached photos you can clearly see the dark black rust had been removed by 90% "NO JOKE" I was so taken I went around my home spaying rust stains and the rust was removed in a matter of seconds (This was years of rust built up on the side of the house and did not hard the house paint. If you want RUST GONE, you have to use this Goof OFF RUSTAID "Outdoor". My suggestion is to use a spray bottle to apply and a light facemask as there is a bit of an odor. But tolerable.
              • Recommended
              This did what the pressure washers couldn't
              I have stains on the house from the sprinkler's using the well water. No one could get off. I was told to repaint the house and use city water for the lawn. This instantly removed the stains!
              • Verified Purchase
              • Recommended
              Outstanding Boat Hull Cleaner
              My 3,100 psi pressure washer nor simple green would touch my boat’s water stains, this stuff is like magic!!! It took only enough to dampen a rag and wiping it on to achieve stain removal. https://youtu.be/E7Q24APoQ6A
                • Recommended
                Wow! My Dad recommended this for my Florida irrigation stains. I can't say enough about how fast and well this worked.
                  • Recommended
                  2 found this review helpful
                  Showing 1-10 of 816 reviews