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Princess Auto

Krud Kutter 'The Must for Rust' Rust Remover 3.78l -- $14.99!

  • Last Updated:
  • Dec 5th, 2020 12:01 am
[OP]
Sr. Member
Feb 2, 2015
659 posts
1187 upvotes
Calgary, AB

[Princess Auto] Krud Kutter 'The Must for Rust' Rust Remover 3.78l -- $14.99!

Princess Auto has 3.78 litre jugs of Krud Kutter 'The Must for Rust' rust remover for $14.99. I've never seen it priced this low anywhere, and compares to 946ml for $15.99 at Home Depot or Canadian Tire.

Excellent product that I've had great success with this summer for automotive rust removal use. Tested one of the best on Project Farm as well. Jugs were located in the automotive section of the surplus aisles.

14 replies
Deal Fanatic
Jun 4, 2012
7044 posts
6958 upvotes
too bad no shipping on this item... would have been great with the ceiling storage and coupon
Deal Addict
User avatar
Sep 22, 2005
4035 posts
3247 upvotes
Ottawa
Since I didn't want to spend that much on rust removers, I soaked the rusted brake parts in household vinegar overnight and it worked just as well - $4/gal and vinegar is pretty safe to work on, use nitrile gloves though because rust will also stick to your hands. I then put the parts in a solution of baking soda before rinsing with water and drying with a cloth. If you take the parts out of the vinegar, surface rust will form almost immediately.
Deal Guru
Aug 15, 2015
10100 posts
7042 upvotes
ON
gumby wrote: Since I didn't want to spend that much on rust removers, I soaked the rusted brake parts in household vinegar overnight and it worked just as well - $4/gal and vinegar is pretty safe to work on, use nitrile gloves though because rust will also stick to your hands. I then put the parts in a solution of baking soda before rinsing with water and drying with a cloth. If you take the parts out of the vinegar, surface rust will form almost immediately.
I hear a molasses solution works just as well, but I have never tried it myself. Was waiting for him to drop a rim on his toe but it didn't happen...
Deal Addict
Feb 18, 2007
3539 posts
7788 upvotes
Vancouver
ajdeals wrote: Princess Auto has 3.78 litre jugs of Krud Kutter 'The Must for Rust' rust remover for $14.99. I've never seen it priced this low anywhere, and compares to 946ml for $15.99 at Home Depot or Canadian Tire.

Excellent product that I've had great success with this summer for automotive rust removal use. Tested one of the best on Project Farm as well. Jugs were located in the automotive section of the surplus aisles.

That's a pretty good deal, I bought like the 1L or something version for around the same price from CDN tire not too long ago. Product works great
Deal Addict
Sep 3, 2002
1329 posts
837 upvotes
GTA
gumby wrote: Since I didn't want to spend that much on rust removers, I soaked the rusted brake parts in household vinegar overnight and it worked just as well - $4/gal and vinegar is pretty safe to work on, use nitrile gloves though because rust will also stick to your hands. I then put the parts in a solution of baking soda before rinsing with water and drying with a cloth. If you take the parts out of the vinegar, surface rust will form almost immediately.
Haha. Thank you, mine did indeed rust immediately. Granted, vinegar didn't dissolve all of the rust anyways, so I wouldn't have used them in the end.
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Sep 22, 2005
4035 posts
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Ottawa
dilligafeh wrote: I hear a molasses solution works just as well, but I have never tried it myself. Was waiting for him to drop a rim on his toe but it didn't happen...
LOL about waiting for him to drop the rim on his toes - crazy to work in bare feet like that.

Thanks for this - I wasn't aware of molasses having the same effect so I'll look into it more. I neglegted checking my e-brakes for about 5 years while maintaining only the regular brakes every year and was caught off guard with the amount of rust forming in the rear disc hat. I restored and painted the e-brakes springs and hardware after removing the rust with white vinegar.

I did the same thing with the rusted garage door opener sensor clips at the bottom of the door rails. Without doing that those clips would have corroded beyond repair soon.
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Sep 22, 2005
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Ottawa
theSPOOLER wrote: Haha. Thank you, mine did indeed rust immediately. Granted, vinegar didn't dissolve all of the rust anyways, so I wouldn't have used them in the end.
Vinegar will remove all the rust eventually, you might need to let it soak longer depending on how badly the rust is. I let some of the rust soak for a few days to a week if overnight didn't do it. I poured the used vinegar back into the jug for next time.
Deal Guru
Aug 15, 2015
10100 posts
7042 upvotes
ON
gumby wrote: Vinegar will remove all the rust eventually, you might need to let it soak longer depending on how badly the rust is. I let some of the rust soak for a few days to a week if overnight didn't do it. I poured the used vinegar back into the jug for next time.
After 3 uses it will turn into balsamic...win-win.
Sr. Member
Feb 26, 2007
572 posts
539 upvotes
Do you need to treat the item after using the Krud Kutter to prevent it from rusting again?
Sr. Member
Oct 29, 2006
606 posts
384 upvotes
Ottawa
Anyone know if this is safe on paint? Have a bit of rust just starting to form along side my wheel wells and was wondering how this would work on cars?
[OP]
Sr. Member
Feb 2, 2015
659 posts
1187 upvotes
Calgary, AB
theastroboy wrote: 3.78L is quite a bit. How long can this last for after opening?
I tried to find expiry information on the stuff, but didn't see any. They sell it in a 55 gallon drum, so I'd suggest it probably takes a while to expire haha!
chooraymond wrote: Do you need to treat the item after using the Krud Kutter to prevent it from rusting again?
They suggest it protects the surface for a year after, but I'd say that's a stretch and under ideal conditions inside or something. It's mainly used for removing rust from items to be painted, or from all metal items such as a wrench that can be re-sprayed etc.
devastata wrote: Anyone know if this is safe on paint? Have a bit of rust just starting to form along side my wheel wells and was wondering how this would work on cars?
From the manufacturer's website: 12. Will it hurt paint?
It is water based and contains no solvents, so it will not remove or penetrate paint. If rust is present under a coating, the coating must be removed through mechanical methods before The Must for Rust can go to work. However, if any overspray is left to dry on paint, it can both soften and discolor the paint. To prevent this, simply wipe excess remover from the painted surface after applying the product.
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I've personally used it during a truck restoration project on the frame, leaf springs, and other badly rusted metal components and it worked great. No leftover residue and no effect on painted surfaces/chrome/plastics.
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Jan 22, 2008
6609 posts
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BC
devastata wrote: Anyone know if this is safe on paint? Have a bit of rust just starting to form along side my wheel wells and was wondering how this would work on cars?
It needs to soak for several hours to be effective doesn't it? Just applying it with a brush or something where most of it will run off won't do much I don't think.
PSAs
-Read store exceptions before combining discounts with cash back sites
-There is a difference between the words NEED (necessities) and WANT (desires). The word NEED is over-used on RFD and in society in general.
[OP]
Sr. Member
Feb 2, 2015
659 posts
1187 upvotes
Calgary, AB
SizzleChest wrote: It needs to soak for several hours to be effective doesn't it? Just applying it with a brush or something where most of it will run off won't do much I don't think.
The method shown in the Project Farm Youtube video in my original post shows a good method for how to get it to soak into a rusted area. I had great success with it

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