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Some primers are better at blending imperfections from the bodyworking process (urethanes) while others contain high solid content to act as liquid body filler (polyesters). Self-etch primers are intended to ‘bite’ into the base material for maximum paint adhesion.Find out about new QUIKRETE FastSet and High Strength Anchoring Epoxy glues that are perfect for attaching railings, bolts, and threaded rods to concrete. Expert Advice On Improvin...This self-etching primer went on smooth and appears to be adhering well to the surface of the stainless steel wheel inserts I painted. The primer was a base coat for a black epoxy paint I used to finish coating the wheel inserts. Right now everything looks great. Hopefully, the primer will be durable and hold up for the long haul.It’s a specialized primer intended for use on metal, aluminum, and fiberglass (source). Self-etching primers can do something that regular primers cannot. It contains an acidic chemical that bonds, …Option 2: The Professional Painter’s “Silent Rule”. There’s a golden rule in the world of painting: professionals often apply another primer over the etch primer. This serves as a protective barrier between the etch primer and the paint. This unwritten rule eliminates the uncertainty of whether it’s safe to paint directly over etch ...Roger, this is referred to as the "Primer Wars" and is an ongoing debate here on VAF. DO a search. In my opinion, you need a good 2 part self etching primer. Spray cans don't adequately etch, again my opinion. I cleaned the surface with lacquer thinner, roughed with a maroon Scotch Brite pad and sprayed a 2 part primer containing acid to etch ...I use epoxy primer rather than etch primer. You can apply it direct to bare metal that is rust free - either new metal or to metal that's sandblasted or otherwise clean "white" metal. If there's any suspicion of surface rust, I treat the metal with a phosphoric acid based metal conditioner like Picklex 20, Ospho, etc.Self-etching primers contain an acid component to help it ‘bite’ into the metal for stronger adhesion. Typically sold in spray cans (but also available for roll-on/spray-on applications), this type of primer is best for small projects around the garage or the house, and it can be used with polyester fillers.A. Wash primers are water-thin coatings of phosphoric acid in solutions of vinyl butyral resin, alcohol and other ingredients. They are generally applied to give a dry film thickness of 0.3-0.5 mils (8-13 microns). The purpose of wash primers is to passivate steel and galvanized surfaces before applying a full bodied primer.Self-etching primer is a type of primer that contains an acid, which chemically etches the surface of the metal. The etching process creates a rough surface that allows the primer to bond better with the metal. The acid in the self-etching primer reacts with the metal surface, creating a chemical bond that helps the primer adhere to the surface.Description. Discussions. The key to getting paint to stick to bare metal is all in the metal prep and using the right primers. Self-etching primer contains a mild acid that actually etches the bare metal to create a superior bond between the primer and the metal. Once the area is coated in self-etching primer, more traditional primers can be ...Posted August 7, 2016. On 8/6/2016 at 6:42 PM, pt756 said: what does 2k primer stand for is that a 2 stage self etch maybe just wondering I still use the self etch primer have not tried the epoxy yet. I think the 2K just means you have to add a hardener/activator to it. So I guess technically epoxy primer is "2k."Sep 21, 2013 · Watch the interaction with the phos acid coat and your next coat. Some react in such a way as it appears as though the treated metal spits the primer off like spitting a watermelon seed. Real Epoxy prime can be had in spray can, it has a internal tube of activator that you need to break and has a few hours life. No tube and its junk usually.May 11, 2009 · Shoot Epoxy Primer. 4. Filler if necessary. 5. Add another coat of Epoxy Primer because you probably sanded off some of the epoxy to level that dent in step #4. 6. Lightly block sand with 320 or so. 7. Spray 2K Urethane primer over that for fine block sanding.

04-15-2004 21:09:03. Report to Moderator. Re: Etching primer vs epoxy primer in reply to Tyson, 04-14-2004 20:29:45. Hi Tyson, Some prefer etch and some prefer epoxy. DuPont has historically pushed the etch primer and PPG has historically pushed the epoxy. I much prefer the epoxy for reasons previously posted.YES but the epoxy should be cured and dry at least 10 days in hot weather or up to three weeks if cool. Same with a 2k filler/sealer primer. Pros - Very thick and can fill over 60 grit sand scratches, even up to 40-grit although I would sand until at least 80-grit if possible. Cons - Very thick and will dry VERY hard.Acid and self etch are basically the same stuff. Neither will prevent rust if stored in a place with any humidity. Also some types of primers and finish can't be sprayed directly over the etch primers. I've had best results with cleaning the bare metal parts with "grease and wax" remover and spraying on a few coats of PPG epoxy primer.Unlike etch primers which you can make allowances for as regards sanding, epoxy is often a non-sanding primer. It’s clearer now that you can use both primers on bare metal to …Etch primers are very good for what they were designed for and come in different application varieties. 1: Mild self etching primers with some solids and filling/sanding capability which can be used OVER body filler. 2: Vinyl wash primers with a more aggressive etch/acid content ratio and a VERY thin film build.

IRON ARMOR 12 oz. Gray Self-Etching Primer Spray Paint. Add to List. Shop All . IRON ARMOR $ 6 99. Compare to. RUST-OLEUM 249322 at $ 7.99. Save 13%. null Read More. In-Store Only. Product Details. Product Overview. Our Self-Etching Primer etches and primes bare metal in one step, making it ideal to use in both large scale auto restoration and ...Self etching primer is suitable for use on bare metal, aluminum and fiberglass surfaces. Oil based paint with Stops Rust formula provides rust resistant base coat for cars, trucks and other vehicles. Covers up to 12 sq ft, dries to the touch in 10 minutes and can be topcoated in 30 minutes. High quality spray paint ensures long …Self-etching primers contain an acid component to help it ‘bite’ into the metal for stronger adhesion. Typically sold in spray cans (but also available for roll-on/spray-on ……

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. 1) Perform bodywork and apply any body filler. 2) Appl. Possible cause: Then simply respray the areas you worked on to re-seal them. Although it takes lon.