ZRC 10002 Cold Galvanizing Compound | Single Quart | Iron and Steel Corrosion Protection | Matches Hot-Dip Galvanized Performance | Contains 95-Percent Metallic Zinc

I sprayed a set of skid plats after removing the mill scale and blasting. I chose this product because even with small scratches it should still offer protection to the steel which is more than any paint or powder coat will protect. Water also can't get behind the coating and rust the steel like could happen with powder coat or bedliner/rubberizer undercoating. The skid plates will get scratched after all. ZRC sells the same product in an aerosol can and I plan to purchase this for touch ups. To prep the plates I pickled them in vinegar, an acid. I laid the plates one at a time in a box lined with a large garbage bag and layered paper towels on the top and bottom. I poured 6% cleaning vinegar (bought at the grocery store) on the plates to fully saturate the towels and the following day the mill scale easily wiped away with a red scotch brite pad. I then blasted the plates using the cheapest HF blaster with fine coal slag medium. The scale was completely removed. Surface preparation is CRITICAL!!! I warmed up the can of ZRC in hot water to help mix it. When I first opened it all of the zinc was at the bottom but warming the whole quart up allowed me to mix it up more easily. I put the quart can in a bucket and filled with hot water in my utility sink until the water was at the top of the can. I thinned the ZRC product with one part xylene to 16 parts ZRC (by volume) per the application instructions and sprayed it at 50 psi. I used a kitchen scale (Ozeri ZK14-AB) to get the proportions correct and had to calculate out the density of xylene and ZRC per mL. I think it was 52 g ZRC per 1 g xylene. To spray the ZRC I opened a HF HVLP gun up to 1.9 mm from 1.4. This is the cheap purple gun. I used a wire sized drill bit #48. I didn’t go to 2.0 like ZRC suggests because I want to use this gun for a two-part epoxy primer as well. I set the compressor regulator to 50 psi. I tested and adjusted the gun after filling it. The quart of ZRC covered a complete set of Hefty Fab skid plates for a 2011 Nissan Frontier in two good coats per side. There are five plates in the set. I didn’t measure their surface area to gauge coverage, sorry. I posted a picture of the uncoated plates for reference. I don't have a picture of the coated ones, but just imagine the uncoated ones as light grey instead of dark grey. This was before removing the scale. Seems like it went on reasonably smooth for my amateur hand and cheap AF modified Harbor Freight gun. The surface is hard and the color is similar to hot dipped. I am looking forward to torture testing them as I drag the truck over car sized rocks.

Works great... keeps the rust away

This product works extremely well once it is properly mixed.

We were given 2 pasture gates from a friend that was rusty on the bottom. We sanded the rust and used this compound and they look great almost like new! I would highly recommend this product!!

Excellent product, take the time to mix it thoroughly, I used a small metal paint mixer for a gallon container for my small drill. It saved me from having to purchase a new trailer. It takes a week or so to get it it's worth the wait so plan on it.

This is the real deal, Its been a year since I painted some steel with this, its in a salt spray environment in WA state, not a single sign of corrosion or even dulling. Follow the prep instructions and it will work.

Works good,easy to use and apply.

Lo utilice para pintar una estructura de hierro que instalamos en una terraza en la ciudad de Panamá que va estar expuesta a las sal Este producto lo empleé para pintar soldaduras de perfiles de acero galvanizado hace 5 años y no se ha oxidado Lo estoy utizando además para pintar las parrillas de acero colado en una estufa a gas y ya detuvo el óxido vamos a ver cómo se comporta con el calor Este año vamos a pintar una extrutura en de perfiles ip que se encuentra al lado Del Mar y espero que me ayude a conservarla por mas tiempo sin mantenimiento anual Exoente producto y no es caro para la función que cumple