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Model # GKPA30220

Internet # 100406369

Store SKU # 584293

1 gal. Phosphoric Prep and Etch

This item has been discontinued.
The Home Depot no longer carries this specific product.

$15.78 /each


Model # GKPA30220

Internet # 100406369

Store SKU # 584293

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

Info & Guides

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Product Size (oz.) 
Paint Product Type 
Paint Thinners and Strippers 
Paint/stain stripper 
Product Form 
Product dispenser type 
Plastic Bottle 
Solvent type 
Glycol Ether 
Thinner application 
Oil-based paint 
Warranty / Certifications
Manufacturer Warranty 
SATISFACTION GUARANTEED: If you are not completely satisfied, return your sales receipt with a description of your complaint. Liability is limited to refund of the purchase price. 


Rated 5.0 out of 5 by 9 reviewers.
Rated 5.0 out of 5.0 by 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.. April 20, 2015
Rated 5.0 out of 5.0 by 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!!! September 7, 2014
Rated 5.0 out of 5.0 by The BEST !!! Just Amazing!!! Removed rust from my old tools in minutes.My tools looks new again. February 10, 2015
Rated 5.0 out of 5.0 by Good product Great for converting surface rust to a paintable surface. January 13, 2015
Rated 5.0 out of 5.0 by 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. March 31, 2014
Rated 5.0 out of 5.0 by 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. January 17, 2013
Rated 5.0 out of 5.0 by 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. February 16, 2013
Rated 5.0 out of 5.0 by 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. January 12, 2014
  • 2015-07-29T11:18:50.088-05:00
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Store Exclusive. This item is available for purchase in select stores only.