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20 oz. Flat Gray Cold Galvanizing Compound Spray

$10.48
  • Use high zinc formula on damaged or weathered galvanized surfaces
  • Instant repair to protect metal surfaces from rust and corrosion
  • Fast dry spray paint compound covers up to 12 sq. ft. per can
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Product Details

Rust-Oleum Professional Galvanizing Compound Spray applies galvanized finish to galvanize and sheet metal. Use on wrought iron and spot-welded metal, gutters, chain-link fences and more. No top coat needed.
  • Applies a galvanized finish to galvanize and sheet metal
  • No topcoat needed
  • Dries to the touch in 30 minutes for fast applications
  • 20 oz. can covers areas up to approximately 10-12 sq. ft.
  • Flat finish
  • Rust-preventive finish for industrial applications
  • Cleans up with mineral spirits
  • Actual paint colors may vary from on-screen and printer representations
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

96Questions
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Q:Can it be applied to glass for laser engraving? Is it toxic if it is breathed in?
by|Jan 30, 2023
1 Answer
Answer This Question

A:  Happy to help, Winnie. Rust-Oleum Professional Cold Galvanizing Compound Spray contains a high loading of zinc used to touch-up damaged or weathered galvanized surfaces such as gutters and fences, it cannot be applied to glass. - Rust-Oleum Product Support 6

by|Jan 30, 2023
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    Q:What's the zn dry film?
    by|Jan 21, 2023
    1 Answer
    Answer This Question

    A:  Happy to help, Lester! Rust-Oleum Professional Cold Galvanizing Compound Spray contains 93% zinc in the dry film. - Rust-Oleum Product Support 3

    by|Jan 23, 2023
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      Q:Can cold galvanizing coumpound be used directly on lightly rusted galvanized boat trailer
      by|Jan 12, 2023
      3 Answers
      Answer This Question

      A:  I wire brushed the worst parts on my boat trailer 2 years ago then sprayed the entire trailer with this product. As of today it still looks OK.

      by|Jan 12, 2023

        A:  Thanks for reaching out, David. Rust-Oleum Professional Cold Galvanizing Compound Spray cannot be applied over rust. The rusted areas can be treated first with Rust-Oleum Rust Dissolver before painting, be sure to follow the directions found on the label. https://www.homedepot.com/p/Rust-Oleum-32-oz-Rust-Dissolver-Spray-Gel-6-Pack-300112/301061349 - Rust-Oleum Product Support 6

        by|Jan 13, 2023

          A:  No, surface needs to be clean and rust free. To be honest, if you are looking for a galvanized finish, this is not the stuff, it’s more of a gray primer color.

          by|Jan 16, 2023
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            Q:What is the coolest outdoor temperature this can be applied and used on for light poles?
            by|Jan 5, 2023
            2 Answers
            Answer This Question

            A:  It works ok in the cold shake it like ya life depends on it or it will clog

            by|Jan 6, 2023

              A:  Happy to help! To ensure proper drying, Rust-Oleum Professional Cold Galvanizing Compound Spray should only be applied when air and surface temperatures are between 50-90°F (10-32°C) and relative humidity is below 85%. - Rust-Oleum Product Support 3

              by|Jan 5, 2023
                Showing 1-4 of 96
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                Customer Reviews

                4.5 out of 5
                (360)
                • 4.5
                  out of 360 reviews
                • 91%recommend this product
                Filter by:
                Showing 1-10 of 360 reviews
                EZ to use and worked great.
                This brand worked much better than other brands I used. The spray was even and had no "runs". It coated evenly and dried quickly. Will buy again.
                by
                • Verified Purchase
                • Recommended
                Applies well, seems to leave a good finish, it is a matte finish. They make a bright finish spray...
                Applies well, seems to leave a good finish, it is a matte finish. They make a bright finish spray also, but the three cans I tried of that clotted off the spray nozzle almost immediately. I've used this version on 2 projects so far, probably a total of 10 cans and none of the spray nozzles clotted. There is quite a bit of overspray, so be prepared for that. I let the paint dry for several days in the 100 degree heat and there was still an almost chalky silver residue that came off when I rubbed the painted metal
                by
                • Verified Purchase
                • Recommended
                great so far - except for nozzle & lower coverage than expected
                I got this to repair some corrugated galvanized steel that I plan to put up against a chainlink fence. The steel I'm using used to be a roof and has some patches of light rust on it. I got this spray to cover the rusty areas, however only covering the rust made some of the sheets look too splotchy, so I went and covered the entire 36" x 72" sheet on two of them. I was able to get a nice, uniform gray color which looked good, clean, and uniform. It made me think I might paint all the sheets so the panels would look consistent and even, even though that means covering the nice patina that has developed over time. However, it took one whole can to do one side of these two sheets and the misc rusts spots on about 7 other sheets. I went back to the store today to get two more cans, and to finish the other side of these two sheets of metal. The nozzle on both cans I bought today kept splattering out irregular drips, which caused me to have to go back and add more paint to cover them up. This has made it impossible to get a uniformly painted look, and caused me to use more material than necessary. I do not know how to tell a good can from a bad can when I go to the store - they look the exact same. I followed directions both days so I am not sure what is different or what I was doing wrong. It is frustrating. I know to get a uniform look I would have to go back and paint the entire sheet from top to bottom; but that is impossible to do if the spraycan continues to spray out new random thick drips and splatter when I try to do it. This problem is causing my project to take more time and cost more money than expected. So I don't think I'll bother painting all of my panels. This would be a good product if the nozzle worked properly and it covered more material. Not sure how long it will hold up or look in a few years though.
                by
                Response from Rust-OleumSupportApr 27, 2020
                Thank you for sharing your experience, and providing this feedback using our Rust-Oleum Professional Cold Galvanizing Compound Spray. We expect each of these cans to cover approximately 10-12 ft². Sputtering may be caused by solids collected at the bottom of the can, or paint build-up on the tip of the nozzle. Shaking thoroughly prior to, and periodically during use will ensure the solids in the can are evenly and completely mixed for even spraying. If a build-up of coating is noticed on the tip of the nozzle, this excess should be wiped from the nozzle before continuing to spray, as this build-up will cause sputtering, or droplets to fall on the application surface. - Rust-Oleum Product Support 2 Rustoleum
                  • Recommended
                  I'm using new galvanized heavy gauge steel stand-off post mounts used to bolt 6x6 pressure treate...
                  I'm using new galvanized heavy gauge steel stand-off post mounts used to bolt 6x6 pressure treated 12' posts to the concrete slab floor in my steel building, to support a storage loft. Use squares of 3-ply conveyor belt of material to isolate the galvanized mounts from the damp concrete floor. To extend the life of the steel post mounts I clean them with acetone and apply several coats of this Rust-Oleum's Cold Galvanizing spray. Nine, so far. Each coat is thick, is rock hard tough when dry, and holds up to the installation of 5/8" galvanized bolts. The spray compound is thick with zinc, smooth, not sandy, and would make older galvanized fencing and posts or mailboxes, etc., look new. . I will use this for more projects, scratched painted steel, lawn mower decks, etc., in my Florida humid air. Five stars.
                  by
                  • Verified Purchase
                  • Recommended
                  2 found this review helpful
                  Good product for general use as long as it is not messed with
                  I buy this Rust-Oleum brand when I cannot buy the more expensive ZRC cold galvanizing compound at a welding shop that has limited hours. This is a better deal for projects that will not be touched by anything like ceilings and high walls since the product does scratch of easily. It gains a little more scratch resistance after it is cured but it does not hold up as well to the ZRC brand as well. I found out about the ZRC brand since I work in industrial construction and that is what the steel workers use for touching up pipe racks and other hot dipped steel. Overall Rust-Oleum should be good for most general applications and if it scratches off just repaint that spot (3 stars for that since the other brand is much more scratch resistant).
                  by
                  • Pro
                  • Recommended
                  12 found this review helpful
                  Great rust inhibitor....
                  Great rust inhibitor.
                  by
                  • Verified Purchase
                  This is our first choice of cold gal spray. It...
                  This is our first choice of cold gal spray. It matches the factory finish on galvanized conduit and strut.
                  by
                  • Verified Purchase
                  Great Product
                  Great for covering bare metal before painting to stop any rust from forming. Great price with large spray can.
                  by
                  • Verified Purchase
                  • Recommended
                  Not good for parts that will be used.
                  I applied this to some galvanized car parts including tailgate hinges and struts. Even on a media blasted surface this galvanizing paint does not adhere well. It can be scraped off with a fingernail even after drying for a couple days. Seems to cover well and looks nice but will not stand up to any impacts or scuffs. Would be ok for a fence repair or non-impact area. I'm going to have to media blast it off and start over with another product. Maybe silver paint.
                  by
                  Response from Rust-OleumSupportDec 8, 2022
                  Let's see what we can figure out. Rust-Oleum Professional Cold Galvanizing Compound Spray contains a high loading of zinc used to touch-up damaged or weathered galvanized surfaces such as gutters and fences, it cannot be applied to non galvanized surfaces.
                  - Rust-Oleum Product Support 6 Rustoleum
                    by
                    • Verified Purchase
                    Showing 1-10 of 360 reviews

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                    Ratings
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