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Calcium, Rust, & Lime Remover

(6 reviews) Write a Review
FREE for all USA orders. International orders calculated at checkout.
Remove Calcium, Rust and Lime buildup this deposit killing organic formula. Works instantly! Not an acid! Spray and rinse with water and the crud is gone!

Quickly and easily removes even the toughest stains, deposits and build-up. Flitz's organic salt formula is safer and easier to use than traditional cleaners. Recommended for removal of hard water spots and rust stains too!

Not for use on: Marble, Some Granite, Jura, Travertine & Terrazzo.

Perfect For Use On:

  • Glass Plastic & Acrylics
  • Aluminum
  • Fiberglass & Tile
  • Stainless Steel
  • Brass & Copper
  • Painted Surfaces
  • Enamel finishes

Instantly Removes:

  • Hard Water Spots
  • Calcium/Lime Deposits
  • Heavy Green Tarnish
  • Heavy Oxidation Rust & Corrosion
  • Grease, Oil & Hard Water Stains
  • Soap Scum Build-up

How to Use:

  1. Spray full strength onto surface
  2. Wait up to 1 minute (DO NOT LET DRY)
  3. Rinse well with water

For severe encrustation, repeat and agitate with a brush. Seal and protect surface with Flitz Sealant.

Download the Safety Data Sheet (SDS)
Download the Flitz Instant Calcium Lime & Rust Remover Information Sheet
CA Prop 65 Code 003

6 Reviews Hide Reviews Show Reviews

  • Thank you for saving me from the expensive route of window replacement

    Posted by SSgt Nicholas S. Phillips - Los Angeles, CA (verified buyer) on 14th Feb 2013

    I have had hard water and lime stains on my 97 Honda Civic windows for over 5 years. Finally I have been able to remove them. I was skeptical to say the least. But figured I would try this economical attempt at removing the stains before taking the drastic measure of replacing the windows with new ones. The stains came from 2 years of sprinklers with recycled water pelting the passenger side of my car while it was parked in my driveway. Furthermore I was stationed at Edwards AFB and the extreme heat of the Mojave desert summers had baked on the stains. I honestly felt after two trips to auto detailers and using home products(Lime Away and CLR to name two) that there was only the expensive route of window replacement to get the clear windows I strived for. But thanks to your product and simple instructions you have saved this overworked and underpaid Air Force Staff Sergeant from dipping into my savings account.

  • I can't thank you enough

    Posted by Saundra Wasser Falk (verified buyer) on 14th Feb 2013

    My late father, 2nd Lt. Maurice J. Wasser, was a POW in Germany. Following his passing, I found my father's POW Dog Tags, rusted with oxidation. Nobody would attempt to clean the tags, since we didn't know what they were made from. I sent an e-mail to the USAF, who told me how to figure out if they were ferrous or non-ferrous. After determining they were ferrous, I purchased your product this afternoon and began the task of cleaning these most precious tags. They are BEAUTIFUL! I probably still have a little bit of polishing to do, but what a difference. These tags were special because my Dad's POW number was 147023 and my birthday is 012347! My sister made them into a necklace for me but the rust was awful and would stain my clothes. THANK YOU FOREVER for restoring this for me!

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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