How do you get rust off concrete?
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Answers:
Rust Removal from Concrete
You should be able to remove the rust stains from your concrete driveway by using any of the commercial rust stain removers out there. Some are Zud or Whink, and they are available at most department stores. You can also try scrubbing the area with TSP. =)
CLR or Lime-a-Way and a steel wool sponge.
Try Muriatic Acid (hydrochloric), it should work. Just be careful, the stuff is very powerful and you must cover any bare skin as it will easily burn!! Hopefully your job is an outdoor job.!!
Try the lightest products first...
Try Salt and lemon juice mixed together to form a paste first..
Then try Whink or even comet or ajax
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