Model # GKPA30220

Internet #100406369

Store SKU #584293

Klean-Strip 1 gal. Phosphoric Prep and Etch


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

Frequently Bought Together

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

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

Can this be used to remove rust in spots on an open metal carport with metal posts and small metal beams?

Asked by: dave
should work well - use this sequence: spray full strength solution, let stand 15 mins, scrub off with scotchbrite pad while spraying additional solution, immediately water off thoroughly
Answered by: topcat
Date published: 2017-02-07

Auto Painting Use

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?
Asked by: NickyD
This stuff is great to get rid of rust. Scuff it with a wire wheel/wire brush or sandpaper and spray on let it sit--rust goes away, rinse and prime.
Answered by: gary
Date published: 2016-11-18

Will Klean-Strip Phosphoric Prep and Etch remove rust from concrete?

Asked by: Researcher
Answered by: DangerousDave
Date published: 2017-02-16

What is the coverage?

Asked by: krmer
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.
Answered by: DangerousDave
Date published: 2016-10-26
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Customer Reviews

1 gal. Phosphoric Prep and Etch is rated 4.6 out of 5 by 14.
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 works v well to subdue mill scale on new hot rolled steel. I used the solution on 3/8 " steel pla... works v well to subdue mill scale on new hot rolled steel. I used the solution on 3/8 " steel plate that was particularly marked with scale and the low-strength phosphoric acid in the Prep and Etch created an attractively refined-raw skin
Date published: 2017-02-07
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
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