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Clean and prep surface then let dry thoroughly. Application: Shake can well before spraying. Spray two light coats of POR-15 Self Etch Primer and allow 10 to 15 minutes between coats. POR-15 Self Etch Primer can be topcoated in 30 minutes. It is not necessary to sand POR-15 Self Etch Primer before topcoating. It cures to touch in 30-60 minutes.The etch primer is intended to give a top coat something to stick to and it is porous. If you want a primer that gives corrosion protection via an impervious barrier then 2-pack epoxy will do this. It obviously doesn't come in a rattle can. Sorry I don't know anything about ez coat.Regular primer is a high-build primer; therefore, it’s good at filling up and sealing porous surfaces on substrates. Self-etching primer is a low-build primer designed to corrode/scour surfaces rather than fill pores and cracks. The regular primer is better at sealing than a self-etching primer from the above.The main visual difference is the bright red color of the red oxide as compared to the yellow-green color of the zinc chromate. But the main difference is the increased effectiveness of the rust preventative qualities found in zinc chromate as compared to red oxide. If you are shopping for a rust-preventative in your primer, you may run across ...Yes, you heard me right. Epoxy resin and acrylic resins have some differences. Acrylic resin, often called polyacrylate, is a type of thermoplastic that is derived from methacrylic acid, acrylic acid, and other similar compounds. They are used to create various objects such as sculptures or jewelry. Epoxy resin is a type of adhesive that can be ...After you apply the self-etching primer on the well-cleaned metal surface, you should wait until it completely dries. After that, you have to apply a compatible primer over it. There are two types of regular primers, urethane primers and epoxy primers. It would be best to use a urethane primer over a self-etching primer.1.9K. 115K views 2 years ago. in this video I explain the different purposes for most primers out there in the market. The primers include DTM primer , Urethane primer surfacer , high build...I know self etching primer works best on bare metal, specially to prevent future rust, but I also keep reading that rustoleum is very soft. I'm confused since the other "automotive primer" offered by rustoleum also says it "stops rust" on the can. I also have a primer/sealer (also says stops rust on the can).Primer is applied after the surface has been cleaned and sanded and allowed to dry and cure completely before paint is applied. Primer is naturally more “sticky” than paint and undercoat, making it the ideal tool for the job. Primer can be used on a variety of materials including wood, metal, plastic, and even certain types of glass.W. West. 225 posts · Joined 2015. #2 · May 12, 2016. zinc primer is for use between panels that are going to be welded,example :sills /inside door skins,any box section,it will let you spot weld though it or plug weld,as you weld it's supposed to seal around the weld to prevent rust,we use it in our body shop for all repairs/accident damage ...4273 posts · Joined 2004. #4 · Sep 11, 2009. dont listen to me or anyone else on this. call ppg or dupont or whoever you use . i use spi and it is not recommended period. you need nothing under epoxy but clean metal. no acids of any kind. shine mccarver. crazyhorse rod shop. www.crazyhorserodshop.com. Like.Let the primer flash at 70 degrees for about 5 to 8 minutes ( at least at surface metal temperature of 70 degrees) once the epoxy primer look not wet anymore and silky, apply your second coat a little wetter. You can choose to put 1 more coat on if you want it's really up to you. The full cure time is 12 hours at metal surface temp of 70 degrees .2K Epoxy Primer/Sealer is a high-quality, two-component, isocyanate-free epoxy primer designed to be used as a corrosion resistant primer with excellent adhesion to metal, fibreglass and aluminum surfaces. 2K Epoxy Primer Sealer improves adhesion of body fillers and resists moisture damage caused by water permeation. ... 1K Self Etching ...You also need to get the wheel spotless clean. Depending on its condition you may consider bead blasting to get the surface uniform. Alloy's and salt can take off and corrode depending on where you live and condition they're in. Bead blasting with clean beads will solve this. Don't sand blast with salty sand.In Reply to: Etching primer vs epoxy primer posted by Tyson on April 14, 2004 at 20:29:45: If the self etching primer is peeling off the tractor that means you have a contaminated surface that prevented the primer from sticking. As it came loose, the paint of course came with it. If the self etching primer stayed in place and the urethane ...Join us now! Menu. FAQ: Members List: Social Groups: Calendar: Search: Today's PostsThe self Etching primer has an acid in it that will flash off when it drys but allows the primer to bond to the metal but DOESN'T seal the metal from moisture, you must go over it with a two part epoxy to seal the self etching primer. So use self etching primer to avoid acid etching and alodine but then prime with epoxy primer to seal.Rinse the surface with clean water and pat it dry with a lint-free cloth. Sand the Surface: Next, lightly sand the chrome surface to create a rough texture. This will allow the self-etching primer to adhere better. Use a fine-grit sandpaper and make sure to sand evenly across the entire surface. Remove Any Rust: If there are any signs of rust ...Get free shipping on qualified Epoxy Primefrom texas. Back in my bodyshop days, we used self-etching primer It is no longer recommended to use an etch primer under an epoxy primer. Residual acid from the etch primer can interfere with the proper curing of the epoxy. This may lead to extended dry times, potential blistering, and even adhesion failure. Answered by: Anonymous. Date published: 2023-05-07 ... Temperature and humidity: Acrylic primer can be Matthews primers also provide increased paint durability, corrosion protection, and filling capability to your sign project. 274535SP/01 Brilliant White Primer. 74350SP/01 3.5 VOC Non-Chromate Etch Primer. 274685SP/01 U-Prime White Urethane Primer. 274528SP/01 Gray, 274530SP/01 White, 274531SP/01 Black 2.1 VOC Epoxy Primers.Appreciate any replies here. Background is truck mechanic, so my autobody experience is "hammer it out and spray it with rustoleum" 😄. Transtar 2 in 1 is ok and SEM makes a good high build primer. Spraymax 2k epoxy primer. It's catalyzed. Comes in beige or gray. No matter what you find just make sure its an expoxy. The purpose of self-etching primer is to be app

from texas. Back in my bodyshop days, we used self-etching primer like dupont variprime, then laquer primer sprayed wet on wet ( no need to sand the variprime if applied w/in 12 hours) 3 wet coats primer, block sand, re prime 3 wet coats laquer primer block sand, etc, etc, etc till your arm bout falls off. Final sand w/ 400 to 500 grit wet ...2k can mean a lot of different primer types. 2k (2 component- dang Europe in there use of K to spell words -lol). Meaning the product is activated and cures by chemical reaction. But generally when someone says 2k primer, they are most often talking about a urethane primer. Epoxy, urethane, and polyester primers are all 2k.Re: self etching primer vs zinc chromate. kilowatts said: (i) Degrease with some kind of detergent and hot water, blow dry. (ii) Sand all existing paint. Sand to bare metal any chips, corrosion etc. (iii) Wash again with detergent and blow dry. (iv) Wash with 50/50 white vinegar and water, blow dry. (v) Shoot a thin coat of rattle can green ZC ...547 posts · Joined 2005. #2 · May 31, 2010. Epoxy is different than 2K. 2K is a polyeurathane. Both are mixed with a catalyst. Some 2K is a polyester. They contain materials like talc and other inert materials that are good for filling sanding scratches. Epoxy will not fill scratches, that is why it's great to use as a sealer.This allows for less sanding. This achieves the best of both worlds, using a etching primer for bite and an epoxy primer to seal and create an excellent primer base. Keep in mind that you can't apply wash primer over bondo and most bodymen prefer to apply all bondo over 40 grit prepped bare metal.

The basics of using automotive primers, acid etch primer, epoxy primer, and urethane high build primer explained, as well as basic prep work, block sanding a...Removing any substance from your car's paint, including primer, is a delicate task. A car's paint can be easily damaged by certain chemicals or cleaners during removal, costing hun...Self Etching primer vs. epoxy primer. Jump to Latest Follow 41 - 48 of 48 Posts. 1 2 3. C. crashtech · Technician. Joined May 14, 2005 · 707 Posts ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Aug 15, 2009. #5. I've put epoxy primer all over m. Possible cause: go2fast. 1917 posts · Joined 2005. #2 · Jun 8, 2011. In general self-etch is not a mois.