Model # GKPA30220

Internet #100406369

Store SKU #584293

Klean-Strip 1 gal. Phosphoric Prep and Etch
0030192302200

Klean-Strip

1 gal. Phosphoric Prep and Etch

  • Removes rust from metal surfaces and inhibits flash rusting
  • Etches concrete and masonry surfaces
  • Helps ensure good paint adhesion
$15.78 /each

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Product Overview

Klean-Strip Phosphoric Prep & Etch does the job of three products It removes rust from iron and steel surfaces. It treats metal surfaces, including galvanized and aluminum to allow better paint adhesion. It also etches concrete to allow paint or stains to penetrate and adhere.

  • Efficiently removes rust from metal surfaces
  • Etches concrete and masonry surfaces
  • Helps ensure good paint adhesion
  • Inhibits flash rusting
  • Non-toxic formula
  • Carefully read all directions, notes and cautions prior to use
  • Key to an attractive, durable paint job

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Customer Questions & Answers

29 Questions31 Answers

Customer Questions & Answers

1 gal. Phosphoric Prep and Etch
1 gal. Phosphoric Prep and Etch

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This question is from 1 gal. Phosphoric Prep and Etch
 
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Can this be used to remove rust in spots on an open metal carport with metal posts and small metal beams?

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July 5, 2016
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July 7, 2016
Answer: 
This can be used.
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July 7, 2016
Answer: 
It can but you must repaint within 48 hours.
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Auto Painting Use

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NY
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August 21, 2015
Can you use this on a car after you have sanded down the paint just before you prime to get the paint to adhere better?
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December 29, 2015
Answer: 
I've been using phosphoric acid to treat the steel surface without having to do complete rust removal first. I just get the worst rust off, and clean, then at over 50 degrees F., apply the phosphoric acid, soaking the surface completely, allow it to dry completely, with plenty of time and kept above 50 degrees (somewhat higher than 50 degrees is probably better). Then the surface has its surface Read More
I've been using phosphoric acid to treat the steel surface without having to do complete rust removal first. I just get the worst rust off, and clean, then at over 50 degrees F., apply the phosphoric acid, soaking the surface completely, allow it to dry completely, with plenty of time and kept above 50 degrees (somewhat higher than 50 degrees is probably better). Then the surface has its surface completely reconditioned and converted into a nonrusting form of steel/iron.
I've also used Corroseal which contains phosphoric acid and also contains a tough sealer to prevent re-rusting. The Corroseal is painted onto the cleaned surface (probably should be cleaned more thoroughly of rust, than required for phosphoric acid alone) then rinsed and dried. Then applying the Corroseal at above 50 degrees F., or a bit higher temp., allow to dry completely, and then, look for places where there may be untreated gaps or places requiring more Corroseal or simply apply a second coat of Corroseal. This seems to be a very good method for protection.
The other person answering here mentioned a product (Bulldog), that I'm not familiar with, but that might be very good, just have to figure out how to use it if it's used in combination with other methods such as mentioned here. I'm sure Corroseal may require complete wash/rinse after sanding or brushing the surface; but it also may be okay to paint the bare metal with phosphoric acid, allow to dry thoroughly, and then apply Corroseal. That's something to check with that manufacturer, I'm not sure.
Also there''s the question of using "Bulldog" for surface paint adhesion on top of the Corroseal treatment. Either of those manufacturers might be able to answer that. I've never looked into it because I don't care about the surface color of my vehicle.
All this hassle can be avoided if we start making our own molded carbon fiber composite replacement panels, but you still have to bolt onto a corroding steel frame & structural steel parts so there's always a need to deal with rust, until we have structural carbon fiber composites used in car/truck manufacturing generally. Read Less
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August 24, 2015
Answer: 
No, you should use an adhesion promoter like Bull Dog which is a tie/flex product.
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Will Klean-Strip Phosphoric Prep and Etch remove rust from concrete?

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Layton, Utah
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April 1, 2015
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Miami/Fort Lauderdale Florida
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April 20, 2015
Answer: 
NO
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April 1, 2015
Answer: 
No, this product is not for use on concrete.
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What is the coverage?

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Cleveland, Ohio
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July 15, 2014
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Miami/Fort Lauderdale Florida
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April 20, 2015
Answer: 
I use this product to remove rust from storage units one gallon goes along way and covers at lease 20 units. Sorry not sure if thats helpful.
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July 15, 2014
Answer: 
300 sq. ft. per gallon.
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Customer Reviews

1 gal. Phosphoric Prep and Etch is rated 4.6 out of 5 by 13.
Rated 5 out of 5 by from Great for metal prep I'm really happy with this product for my truck restoration!! It's great for surface rust that's imbedded and can't be grinded out. Really makes me confident that I won't have rust under bodywork and paint. Great prep for sandblasted metal before epoxy primer Much cheaper than auto paint supply store metal etch/prep and does the same thing
Date published: 2016-12-14
Rated 3 out of 5 by from Brick porch needs help I have a red brick porch. It has develped a white coating and nothing I do removes the coating. The porch looks awful. I tried pressure washing several times to no effect. The internet recommended phosphoric acid and I found this product at The Home Depot. It was easily to use and much safer than muriatic acid. It seem to have done the trick. However, after about 4 days the coating is coming back. I don't believe its the fault of this product but I am at a loss as to how to solve the problem. Right now the only solution seems to be putting down a new surface.
Date published: 2016-08-30
Rated 5 out of 5 by from Best Metal Etch anywhere....Period! This metal etch is by far, the best etching solution I have ever tried. I am an automotive restorer of classic muscle cars and this product blows POR-15's "Metal Ready" away as well as any other restoration suppliers metal etch which usually costs 2 - 3 times as much. It is fast and aggressive yet not destructive. I made a dip tank from one of HD's large 27 gallon plastic totes and filled it half way with 14 gallons of this product. Then I submerged 2 big block Chevy cylinder heads in it for 24 hours after they were sandblasted but had flash rusted. When I pulled them out and rinsed them off, I was amazed. Rust was gone and a nice dark phosphate coating remains after rinsing. I never thought of HD for restoration supplies but lately with this product and some of there Zep brand degreasers, my thoughts have changed. Home Depot...Please do not stop carrying this product!!! The price is great and so are the results. I'm loving it!!!
Date published: 2014-09-07
Rated 5 out of 5 by from Great Thin-Set Remover I bought this product to try and remove hardened (5 years) thin-set from the back of tiles I removed. I had to let them soak for 24hours but the cleaner worked to eat away the thinset and saved me from having to retile the entire floor or finding a similar tile. This product was a life saver for thinset removal.
Date published: 2013-01-17
Rated 5 out of 5 by from This stuff works very very well! I used this stuff to clean a steel gas tank that had rust in it. I let it sit in there for 3 days and then it was like brand new again. I'd highly recommend it for an application like this.
Date published: 2013-02-16
Rated 5 out of 5 by from Excellent product Dissolves all rust off all steel parts in a matter of hours or even minutes for thin layers of rust. It pickles steel to a fantastic base, with no prep required for painting.
Date published: 2014-03-31
Rated 5 out of 5 by from Great product This product can be poured into a bucket and will clean metal parts quickly and easily. Beats conventional jelly like agents that are messy and require a lot more effort. Parts can be dried off in a matter of seconds exposing clean bare metal free of oils rust and or paint. Some paint may require steel brushing but again it saves a lot more effort than other types. No goop no hassle.
Date published: 2014-01-13
Rated 5 out of 5 by from This stuff is awesome!!! Works great for removing rust from metal ready to paint in a few minutes I highly recommend this product apply with paint brush and one gallon goes a long way. Much easier to use that Naval Jelly products..
Date published: 2015-04-20
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