Vinegar, a weak acid, can be used to etch aluminum in preparation for painting. Despite the caveat, self-etching primer has some nice advantages. It contains an acidic chemical that bonds, or etches, onto a metallic surface. Finish 1 Chromate-Free Etching Primer. Nobody likes watching paint dry. The Self Etch Primer is a good first step for bare metal, or an Epoxy Primer. Use self etch primers on steel, stainless steel, and aluminum panels. I like it on old tinplate trains too. So even though you need to spray a top coat over self-etching primer in a hurry, it gives you durable results in a hurry. When restoring or customizing toys, thick paint is usually a disadvantage, so self-etching primer helps. Like other types of primer, the topcoat didn’t run when I applied it. Many thanks. Self-etching primer is no secret at all in automotive restoration circles, but it doesn’t get a lot of talk in other circles, for whatever reason. Whether that’s an advantage or a disadvantage depends on your application. We get it, so we developed TotalBoat Aluminum Boat Etch Wash and TotalBoat Aluminum Boat Barrier Coat. Self-etching primer adheres to tin-plated steel really well and it dries to a somewhat rough finish that makes it easy for the top coat to grab onto. After applying self etch primer, you will typically follow up with a urethane primer to provide a high build surface which can then be block sanded smooth. Hope this helps, Mark .DESCRIPTION AND USES. You can also use it under red, if you want the red to be a bit darker than it would be otherwise. So whether you’re restoring old toys or trains, custom painting a computer case, restoring other worn-out metal household items, or fixing up a car, this stuff may very well be the best trick you’ve heard of in a long time. Self Etching Primer etches and primes bare metal in one step, making it ideal to use as the first step in all priming projects Features EZ Touch® fan spray nozzle Superior etching ability on bare surfaces Perfect for spot repairs The etch wash cleans, conditions, brightens, and etches the surface to ensure excellent adhesion. $16.99, Special Price This product is … Fix it easily. You can follow the self-etching primer with a high-build primer to help with surface imperfections, or if you’re relatively happy with the surface, with a top coat. Other Eastwood Primers. Dupli-Color® Self-Etching Primer etches and primes bare metal in one step, making it ideal to use as the first step in all automotive priming projects and for use on spot repairs. Adheres to Metal & Painted Surfaces. It provides excellent protection against corrosion to bare metal, thereby eliminating the need for metal conditioning. Date published: 2019-01-29. HP Elitebook won't turn on? $13.97, Regular Price: About Self-Etching Primer Rust-Oleum® Self Etching Primer prepares bare metal, aluminum and fiberglass surfaces to promote maximum adhesion and smoothness of the top coat. It is often still recommended by experts to sand the metal before (and after!… If a normal primer is used the paint has a chance of peeling or flaking later on. Follow up by wiping it down with mineral spirits. Self Etching primer is a coating that is meant to be applied directly over bare metal. Self Etching 1K Primer 15 OZ is a ready to use one component metal etching primer. Self-etching primer can save you quite a a bit of time since it saves you the step of sanding your surface, and it cures quickly. You have to sand the aluminum first, with 120-grit sandpaper. Oil-based formula resists damage from weather and is an essential step to achieving a professionally finished look With most metals you don’t really have to sand beforehand, but with aluminum you do. This is because the hood is aluminum… After 30 minutes of spraying an old junk diecast car with it, I picked it up and tried to scrape it with my fingernail. It increases both adhesion and corrosion protection on bare substrates. It lets me get better results in less time, which is pretty much the goal in anything. Rust-Oleum Automotive self etching primer prepares bare metal, aluminum and fiberglass surfaces for painting, promoting maximum adhesion and smoothness of the top coat Etches, primes and prevents … Etches, primes and prevents rust in one easy step. $135.78. Post was not sent - check your email addresses! Buy 6 or more $4.78. Sometimes you have aluminum and metal next to each other, there's a natural-common chemical reaction within them that creates-accelerates corrosion between them, and this product helps with that process. Sandable Bonding Coat (1) If you need to use any fillers like Bondo, apply the fillers before you apply your primer. 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