For smaller jobs I am fond of Rust Tough acrylic enamel, although at $6.00 a rattle can it is a little high. One was brushed. It makes a good uniform base color for the top coats. Used Gillespie, Sherwin Williams and Aervoe top coats, sprayed and brushed on. It's easy to use and it's easy to top coat. “You need a primer that will match the surface. Rust-Oleum calls its brand of rust converter Rust Reformer. If so, does that include rattle-can lacquer primers like PlastiKote's Spot Filler Primer? The product is water soluble and odorless. Well, I found Krylon H2O latex spray but I dunno. I have used it on wood, painted surfaces, rusted surfaces, aluminum yellow chromate primer and even bare metal. I brush it on to work it in. SO far so good. Epoxy primer can be applied on either new bare or old rusty metal surfaces and is compatible with top coats made up of other substances. However, there is one downside to epoxy primer. Sanding or simply washing with paint thinners or soapy water is the best way to prepare the surface. I ask because I do not have the equipment or place to do an over-all primer job, and I want to protect the few areas where I have done body work, and a few sand-throughs from rust until it can be overcoated completely with an epoxy primer. Make sure the item you want to paint is dry. The stuff will not allow new rust to start ever. ... galvanized already and I painted with a good coat of Metal paint. Rustoleum's preparation guide recommends removing dirt, grease, oil and chemicals as well as any chipping paint or loose rust. I let it "dry" for 3 days before putting a top coat on. An epoxy primer cannot withstand UV ray as good as urethane. Provides more than two times the rust prevention of using lacquers and enamels alone. According to the company’s product description, Rust Reformer bonds with the rusted metal, changing it chemically which protects it and leaves a paintable surface. For rusty metal, I use Extend a product the uses a little phosphoric acid in the mix to convert the rust to iron phosphate, and also is a good primer. Rustoleum says only use latex paint for a top coat. I follow with Rust-Oleum Rusty metal primer, the red oxide type, then top coat. Read honest … You can basically use epoxy primer on both the frame and the body, as long as you are going down to base metal. Zinsser® Bondz® is specifically made to adhere to heavy and dense surfaces, and it [is effective on] about 90 to 99 percent of all metal substrates.” Putting on a proper coat of primer means that nearly any type of … For maximum protection, top coat with Rust-Oleum finishes ... Rust-Oleum® Rusty Metal Primer provides the best base surface on heavily rusted metal for most brands of automotive lacquers and enamels. Once it's clean, prime the item with Rustoleum primer. https://www.hunker.com/13412927/how-to-paint-rusty-metal-with-rustoleum But on Rustoleum's website, they caution against using Rusty Metal Primer on clean metal because it contains "fish oil" which supposedly will float to the surface and cause problems with topcoat adhesion. A good epoxy primer is better in all aspects with reguard to putting new paint on a vehicle. My plan was to sand the rusty areas with a 3M wheel and then brush apply Rustoleum Metal Primer and then a topcoat. I did both of mine with Rustoleum "rusty metal primer" - the brown stuff (with whale oil!). Find helpful customer reviews and review ratings for Rust-Oleum 7769730 High Performance Rusty Metal Primer at Amazon.com.