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KRUD KUTTER MR32 The Must For Rust, 32-Ounce Trigger Spray

4.0 out of 5 stars 116 customer reviews
| 25 answered questions

List Price: $14.22
Price: $12.24 & FREE Shipping on orders over $49. Details
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32-Ounce (32-Ounce Trigger Spray)
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  • Water based, non-toxic, biodegradable, non-flammable and xylene-free
  • Safe for use at home and work
  • From the most trusted name in serious, non-solvent cleaning Krud Kutter
  • Super concentrated, ready to use formula
  • This item is not for sale in Catalina Island
16 new from $8.70
Special Shipping Information: This product may not be available for 1 or 2 day shipping due to federal regulations that require it to ship via ground ship methods only. This product can only be shipped within the 48 contiguous states.

$12.24 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • KRUD KUTTER MR32 The Must For Rust, 32-Ounce Trigger Spray
  • +
  • TEKTON 7068 Wire Brush Set, 9 Inch, 3-Piece
  • +
  • VHT SP229 Rust Convertor Can - 10.25 oz.
Total price: $32.85
Buy the selected items together

Special Offers and Product Promotions

Size Name: 32-Ounce (32-Ounce Trigger Spray)

Product Description

Size Name: 32-Ounce (32-Ounce Trigger Spray)

Product Description

MR32/6 Features: -Rust remover and inhibitor. -Capacity: 32 Oz.. -Wipe clean to accept any primer, paint or coating. -Provides a clean surface free of contaminants, which allow a secure bond for coating. Product Type: -Inhibitors/Rust Treatments. Dimensions: Overall Height - Top to Bottom: -4.75 Inches. Overall Width - Side to Side: -10.75 Inches. Overall Depth - Front to Back: -2.75 Inches. Overall Product Weight: -2.67 Pounds.

From the Manufacturer

America's Favorite Rust Remover, The Must for Rust removes & prevents rust in one step! The proprietary formulation penetrates every void of a metal surface and dissolves rust/oxidation through chemical action. Then tiny, rust-inhibiting crystals are formed and become integral with the surface molecules of the metal to resist future rusting. The corrosive agents attach these crystals instead of the metal. Once completely dry, the surface is ready for the nest step, whether it be painting, welding, plating, lubrication, etc. Or simply leave the surface bare, and the crystals will inhibit future rust formation. Krud Kutter's Must For Rust is ideal for painting. When dry, the Must For Rust accepts any primer, paint, coasting, etc, and provides a clean surface free of contaminants, which allow a secure bond for coating. When chips or breaks appear in the coating the surface underneath will limit the rust to the break. That means that rust won't spread under the coating and maintenance thought up will be quick and easy. Easy to Apply with spray, brush or dip. Rid Rust with Must for Rust.

Product Information

Size Name:32-Ounce (32-Ounce Trigger Spray)

Technical Details

Part Number MR32/6
Item Weight 3.1 pounds
Product Dimensions 3 x 5 x 11 inches
California residents Click here for Proposition 65 warning
Item model number MR326
Size 32-Ounce (32-Ounce Trigger Spray)
Item Package Quantity 1
Batteries Included? No
Batteries Required? No

Additional Information

ASIN B000F6UHDY
Customer Reviews
4.0 out of 5 stars 116 customer reviews

4.0 out of 5 stars
Best Sellers Rank #85,563 in Home Improvements (See top 100)
#59 in Automotive > Car Care > Finishing > Corrosion & Rust Inhibitors
#3,012 in Automotive > Oils & Fluids
Shipping Weight 2.6 pounds (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available October 10, 2008

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 8-Ounce Verified Purchase
Ok I liked the good ole stuff back in the 70 and 80's. This isn't bad and it's useful but I suspect there is better out there. If you use this one or several others that seem a bit weak put it on and leave it sit over night or better part of the day before removing. Also maybe apply several times and repeat if need be. Anyway make sure you put cardboard or newspaper down to protect the floor or counter while you work.
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Size: 32-Ounce (32-Ounce Trigger Spray) Verified Purchase
I like this product very much. While there are stronger similar products, this one is not as toxic. I like that. I typically use it somewhat often than I used a seriously caustic product but that is OK to me. Do be aware, as I noted, that it is not as powerful as some other products. I enjoy the relative safety of it and being able to use it more often.

April 2012 Update
We continue to use and like this product. I discovered that it cleans goo off of scissors well. I had problems with gunk build up while cutting a large number of self-stick labels for a project. I used a glass with a about a tablespoon of Crud Cutter to 8 ounces of water and alternated scissors every 15 or so minutes.
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Size: 32-Ounce (32-Ounce Trigger Spray) Verified Purchase
I got this because of the brand and its environmental safety. However, it did not work very well. I used it on a stainless steel mailbox (I live at the coast and even stainless steel rusts!), and it didn't remove the rust very well, and it certainly didn't protect for 12 months! (more like 1 month...)

I'll be going back to using vinegar to remove the rust and coating with olive oil for protection: that has worked reliably for and protects for at least 6 months. I was hoping this product would be better.
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Size: 32-Ounce (32-Ounce Trigger Spray) Verified Purchase
This product works well on hard-water iron mineral deposits on concrete sidewalks, concrete driveways
and various wood and metal surfaces. Once applied, it neutralizes the iron rust and leaves a
dry protective barrier on the surface. I have used this spray product for 7 years on small areas
of my sidewalk and driveway.
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Size: 32-Ounce (32-Ounce Trigger Spray)
While it does remove rust, it does so very slowly compared to phosphoric acid jelly, and keeping it wet requires reapplying every couple of minutes for as long as half an hour.
As for the 12 month rust inhibiting coating, it failed in less than 24 hours, even though I had applied two coats after all the rust was gone, and left it to dry.
Phosphoric acid jelly plus primer is much faster and easier.
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Size: 32-Ounce (32-Ounce Trigger Spray) Verified Purchase
After spraying this on my slightly rusted bike chain and gears, my chain broke and my gears were left with a crusty carbon buildup. It looked like an outdoor grill grate that hasn't been cleaned. Would not recommend for bicycles.
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Size: 8-Ounce Verified Purchase
Got it to remove rust in Toilet Tank, Put on three times, soaked for more than a day, still did not remove much,
It is cheap, maybe that's why.. Other reviewers liked it and worked for them so not sure why? It removed rust stains okay.
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Size: 32-Ounce (32-Ounce Trigger Spray)
This is the BEST cleaner out on the market today.
I especially love Krud Kutter's "Must for Rust".
I sprayed it on some rust spots around my bathtub and in the bathroom sink.
I also sprayed some inside my dishwasher.
Some spots I had to spray 2 or 3 times, but ...considering that before I found it,I was scrubbing and sweating to get these spots out with no success at all, I tried the lime and rust cleaner they sell in stores, pfffrrrtt, nothing, and with krud kutter I just sprayed it, no scrubbing, no rubbing, just take a soft rag and wipe away.

This product is wonderful, and the concentrated cleaner even removes latex paint, just spray and walk away and then wipe away.
I love it.
With all the work around this old house, this cleaner saves me a lot of hard work & frustration :)
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