Make sure to be just as careful Craig when sanding around the edges so you…, Enter in your email and password to create a FREE account, https://go.ClassicCarRestorationClub.com/C15970, Sheet Metal Shrinker/Stretcher For Your Classic Car, Customize Your Own Classic Car With Sheet Metal Fabrication, Restoring a Classic Car: Installing Fenders. Self-etching primer is ideal for painting metal and creates the foundation needed to bond with the paint. Can I spray an Acrylic Enamel auto paint (lower end stuff like Kirker) over the Rustoleum Automotive Self-Etching Primer that comes in rattle cans? fingerprints. That is a worthy project. Primer Self Etching Beige for Bare Metal Aluminium Plastic 4.8 out of 5 stars (12) Total ratings 12, £8.39 New Go to next slide - Best selling All Auction Buy it now Sort: Best Match Best Match Price + … The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. Hi What’s the next step after selfech priming ? another good choice would be to spray it with a two-part epoxy primer. Rust-Oleum®Self Etching Primer is designed to prepare bare metal, aluminum and fiberglass surfaces to promote maximum adhesion and smoothness of the topcoat finish. Eastwood Epoxy Primer has self etching properties that chemically bond the primer to the metal rather than just a mechanical bond achieved by normal paints. Find Metalshield 300g Etch Primer Spray Paint Light Grey at Bunnings Warehouse. Self-etching primers can be used on anything from steel or stainless steel, to aluminum, fiberglass or plastic. Thanx, I have a '97 Hyundai, I think it has aluminium panels. That etches into the metal and then the primer chemically bonds to it. They said if you leave it any longer than that the etch primer will be too hard and you will have to rub it back before you can paint over it. Depending on the goal of your project you have a few options after the epoxy primer is sprayed. Self-etching primer will get in there and bite into metal for you. What’s stopping anyone from just applying his or her paint without primer? If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. Customers can shop with us in-store or online with our Click & … Now my uestion is it has rust starting but hasnt rusted through, now can I grind it down to bare metal por-15 the rusted areas then put bondo over that or whats the way to go? Self-Etching Primer 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. Is the self etching primer something I can spray on to protect it from rust and leave it until I’m finally ready down the road to apply the high build primer? I have a 1965 Chevy Impala 2 dr HT--I have completly sandblasted the entire car--i have stripped her down to the shell on the frame. Hi Mark. Can we go ahead and start adding are first coat or will we need som other type of regular primer ? We’d love to have you be a part of our community. Putting more of the primer won’t make it work better. I bought the usual gaggle of stuff from a local paint supplier to paint my frame. (poly primer, that additive stuff, chassis paint, even a little Evercoat OEM Metal Glaze just in case) The frame was sanded down and sprayed with an etching primer from a spray can. The key to getting paint to stick well 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. So it’s important that you get all of the scaly rust off. For this I recommend a direct to rust paint I've tried POR15 and Chassis Saver and Hammerite. Typically the next step is apply a primer surfacer, 2-3 coats then block sand with 320-grit. My email address is ddesoto103@aol.com Thank You. I bought 1 gallon of etching primer and a can of hardner (normal drying time). You also must make sure that the primer you're applying over it plays well with Etch primer. It’s also important to remember that no primer is meant to be a top coat and they lack any real UV resistance. Metals with high electromagnetic potentials (aluminium and copper)are so electrically active that they will push the paint off from the back side. Primer 1 FT302 Reducer PHYSICAL DATA FP301 at 1 to 1 with FT302 is 5.83 pounds per gallon. When doing major or even minor work on older cars your going to run into rust. Undercoat in a can may not be quite the overkill that you imagine. Without using an undercoat, the quality of your paint job suffers. Thanks. Thank you for your patience while I got the response from the expert, Here it is: Generally we use 320 or 400 grit to prep old paint for repaint. I generally plan to be ready to pick up the car from the blaster the moment it is done and am ready to throw it into primer. Aluminum is especially difficult to paint. GregI understand what you are trying to do and I've seen it done nicely a couple of times. Painting over rusted metal is not recommended. This comment has been removed by the author. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. I have another project of replacing the rockers on a car and I need to get paint on the inside of the panels to prevent rust.Thanks again for the info,Arden. sparrowhawk@ihug.co.nz, Something which can cause problems is salt, Even a finger print can contain enough salt to cause tiny blisters under the film. Visit your local store for the widest range of paint & decorating products. Problem metals like aluminium copper and galvanized benefit from self etching primer. Thank you for that - i am currently trying to put my 39 year old land rover back together and put "what is a self etching primer?" Whether you’re sanding, sand blasting or chemical striping to get rid of the paint and getting down to the metal the first thing you need to apply to the steel is self etching primer. I was hoping to get away from blasting the frame so I dont have to remove the entire steering/A-arm assemblies and rear axle assembly with 3 arms. We are convinced you will enjoy the benefits of becoming a member and having access to the best instructional how to videos and professional tips. I have a project where is want primer and paint inside and out on some parts I'm restoring or do you know if there is something I can use to spray paint into hollow areas of parts? https://go.ClassicCarRestorationClub.com/C15970, what grade sandpaper is needed to sand paint that’s already on the car for repainting once the sanding has been done do the car have to be primed before painting. I was wondering, can parts be dipped into etching primer? If your car is going to be outside during the restoration process you may need to re-coat some of your primed areas. This allows for a nice flow rate that makes the sanding really smooth and gives the classic car a clean finish. I must admit it is not real pretty, but from all Ive read it is not that important that the SE primer be very thick. I had no need for a gallon of DP90 + gallon of Catalyst. I then use a primer sealer or epoxy primer to seal up the surface then apply the top coats. You can apply your high build primer or body filler over the self-etching primer but be careful it is not a finished product by it self. And the undercarriage parts are rusty too? Once applied and dried (couple of hours) Use a 3m Scotch Brite pad to knock down any nibs and then shoot the Bare metal primer over the entire Prepped(Acetone wipe down) surface. For small parts or spot repairs I often use SEM self-etch primer. Let’s start at the beginning. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. Custom Shop Premium Self Etching Acid Etch Primer, 1 Quart - Ready to Spray Paint, Excellent Adhesion to Bare Metal, Steel, Aluminum, Fiberglass - Use on Automotive Car … Regular primer can be an adhesion-promotin… A clean surface is of paramount importance. You can apply it over paint or bondo but it is only effective on bare metal. You did make it clear to him that you were using self etching spray can primer? The new paint needs a little tooth to grab onto and hold it secure to the finish. Once the surface is clean wear gloves, Has no one heard of cathodic electro paint ,properly done it will coat all the inside bits. Any rust on metal parts must be removed first either by sanding, media blasting or brushing off with metal brushes. Sheet Metal Fabrication can be a useful and effective tool when you are looking to add customized exterior to your classic car. This helps remove sanding scratches and small surface defects. Follow the manufacturer's instructions on the side of the can for best results. This is achieved by combining an acid with the paint so that the acid microscopically etches the surface of the substrate, thus forming a physical and chemical bond between the two. Thanks. Epoxy works pretty good over Acid etch as the epoxy does not tend to melt the etch like, say a 2k primer would, only issue will be is the etch is the weakest link but normally OK, if done this way. I just went in to my local paint shop to buy some high build primer to put on the self etching primer I used in my engine compartment. another good choice would be to spray it with a two-part epoxy primer. Etch Primer can be tricky. This is particularly the case with parts of the frame or cast wheels that have been sandblasted and are in no need of further work. 7 Inspect the piece visually and also by rubbing your hand over it, and use glazing spot putty to fill in any remaining flaws or pinholes in the primer. This ensures good adhesion and rust prevention. The only thing I can imagine is the the paint store guy misunderstood and thought you were using cheap spray can primer and wanted you to take that off. You can apply it over paint or bondo but it is only effective on bare metal. This special primer will grip to the metal and prepare you for regular primer and paint. .DESCRIPTION AND USES. If you do choose to use them I would next apply an epoxy primer as opposed to a self etch primer. Is it better to apply body filler before or after self etching primer? Now after spending 175 on a two part metal lock, I am left with the task of stripping my whole engine compartment back down. The control bolt will then set the height of fender to height of door…, Craig Hopkins demonstrates how to sand a car fender using a small, tight orbit DA with a cushion pad. Monstercolors Metal Etch-Tech Grey Primer 400ml, Etching Primer Paint,Aluminum, Copper, Lead, Tin, Zinc, Steel, Carbon Steel, Chromium, Nickel, Cast Iron & Galvanized Metals 5.0 out of 5 … Dry time is about an hour.Jim, Hi I am messing around with a car I have as a daily driver ( a 81 caprice) its still a very nice car for its age, has rust starting. The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. Never had any peel yet, self etching primer I use on bare metal. If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. Self-etching primer will get in there and bite into metal for you. I was told that because I used spray cans, the primer was no good. Will I need an etching primer for this? Creative Commons Attribution-ShareAlike 2.5 License. Unless you only have a few minor issues to fix, it’s challenging for us do-it-yourselfers to carve out enough time to strip the old paint to bare metal, do the repairs, apply bondo and then spray a layer of self-etching primer before surface rust begins to form on the body. The self-etching primer is usually gray or olive drab gray but the color is just there to show you where you’ve put it on and it is very thin and one thin coat is enough. I use it when ever I see bare metal or if I’m putting one metal against another. I have searched the forum and not found an answer, so - Can I spray an Acrylic Enamel auto paint (lower end stuff like Kirker) over the Rustoleum Automotive Self-Etching Primer that comes in rattle cans? Any input is greatly appreciated. Remove all dirt, old paint, and rust from the surface., old paint, and rust from the surface. I wanna do this myself cheap as possible, I have a hvlp gun and a compressor. However I've never heard of a clear and I've picked the brains of a couple of people I know and none of them has heard of a clear self etching primer.Jim, ddesoto10365 impala hardtop nice! For instance steel screws in aluminum or on welds. Self-etching primer is a primer that can come in an array of mixtures including a compound mixture that you have to mix yourself. Classic Car Restoration Club Video Membership. Self-etching primers have to have another primer ove… You need to use self-etching primer to paint aluminum, but prep work is especially important. I know it's a little over kill but I love my Road Runner and she deserves it. Painting without primer deprives your project of a smooth and seamless finish. Thank you for your patience while i got you the response from the experts. If you wait more than 12 hours you should, like he said scuff down with a Red scotch pad and reapply, then prime. Self Etching Primeris a first-step coating that provides excellent adhesion to bare substrates. In other words you can’t apply it and then push the car back outside, it has to have a sealed surface over it, water will reverse the reaction and will pull the zinc back out. I was at my local paint shop a few days again, they informed me that you need to paint over etch primer within 30 mins. If your diecast has a lot of fine detail, the self-etching primer will get into the areas that you can’t sand and stick anyway, and … Hi Jim,Thanks for the great info. Visit your local store for the widest range of paint & decorating products. What is recommended to prep the frame for priming and painting. A sheet metal shrinker/stretcher is perfect for any type of metal fabrication you need for your classic car, and it keeps the metal completely flat (without crimps). Do you have any suggestions on the best way to do this? Yes you can. The acid, usually phosphoric acid, forces the zinc down into the top couple of molecules of the steel. I prefer Hammerite.Remove all loose rust, dirt, grease and salt with detergent and water then clean with a solvent and rinse with clean water. Self etching only needs to be applied to Bare Aluminum. The self-etching primer is usually gray or olive drab gray but the color is just there to show you where you’ve put it on and it is very thin and one thin coat is enough. Self-etching primer comes as two parts or ready to spray and also comes in aerosol. Tonight I made my first attempt at spraying Self Etching primer (Nason 491-17) to my hood. The Self Etch Primer is a good first step for bare metal, or an Epoxy Primer. Can you put body filler over self etching primer? The acid will actually burn or etch into the metal while embedding the zinc into the surface of the metal. Etch Primer can be tricky. The Self Etch Primer is a good first step for bare metal, or an Epoxy Primer. Allow time to dry between coats. Mark A site for the discussion of automobile paint and painting. (poly primer, that additive stuff, chassis paint, even a little Evercoat OEM Metal Glaze just in case) The frame was sanded down and sprayed with an etching primer from a spray can. Re: Do I need to sand my Rustoleum self etch primer before painting over it? I look forward to your videos every week and always seem to learn something new. 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. Mark Oja gives a brief demonstration on how the stretcher works and then shows you an example of a finished product. Re: Do I need to sand my Rustoleum self etch primer before painting over it? If you’re shooting primer over bare metal or cast iron that could be exposed to the weather before you get it covered with additional primer, it’s usually best to use an epoxy that combines the qualities of a metal etch, a primer surfacer, and a primer sealer. Wipe the surface with wax and grease remover to get it clean enough so nothing interferes i.e. Self-etching primer will not get rid of the rust; it will only paint over it. Follow the manufacturer's instructions on the side of the can for best results. I then use a primer sealer or epoxy primer to seal up the surface then apply the top coats. Two light to medium coats will do. Put on your face mask and spray the entire piece with the self-etching primer. Once the self-etching primer is dry, spray two to three coats of the high-build primer over it, always allowing each coat to dry before applying another one. Hello Chap,Top blog with very informative information!I'm Paul from Surrey, England.I, like so many people here have a Land Rover defender 300TDI 1997 and need to understand if I can use a "Self etching primer" for both Aluminium brackets and galvanised door hinges? HOW THEN DO WE USE AND APPLY SELF-ETCHING PRIMER ON ALUMINUM?Let’s take a look at the steps in applying a self-etching primer. Etch Primer is a paint that is designed to physically bond itself to the substrate to which it is applied. My son is building a bobber and he wants to leave it bare metal and put a clear coat over it to protect it from rust. Thanks Jim. Self-etching primer is composed of an acid and zinc. Epoxy works pretty good over Acid etch as the epoxy does not tend to melt the etch like, say a 2k primer would, only issue will be is the etch is the weakest link but normally OK, if done this way. You have sandblasted the body and I assume it's because of rust, correct? Just in case you do not remove rust from metal before painting, the rust will eventually remove the paint. Hope this helps, Mark Typically the next step is apply a primer surfacer, 2-3 coats then block sand with 320-grit. I'm thinking I can use etching primer then undercoat-in-a-can on top of that? I only use self etch on bare metals. Do not use near open flame. Especially bare metal that has been exposed to the elements for more than a day or so. This helps remove sanding scratches and small surface defects. Here it is: Phosphate washes like After Blast work well if you plan to powder coat or do not plan to prime your parts right away. Putting more of the primer won’t make it work better. Just sanded an old exhaust bracket down to bare metal and was wondering what the best thing to use was since it will be on the bottom of the car. I think I'd go self-etching primer, then spray can enamel then undercoating in a can.The enamel, and I'd use gloss is going to give you more protection than just the undercoating.And like you said she deserves it.Jim, Does any body make a clear self-etching primer? What is the purpose of primer? Once the area is coated in self etching primer more traditional primers can be used to build out the surface. Can you put body filler over self etching As a My general rule of thumb is, If the area to be primed is over a couple feet square, I prefer to mix up some epoxy primer for bare metal. Putting more of the primer won’t make it work better. If you plan to do body work after priming, epoxy primers are a better choice. Good paint adhesion is as much a mechanical bond as it is a chemical bond, so sanding with a finer grit paper may actually shorten the length of time your paint remains attached to the old paint. A note about self-etching primer and aluminum. The steel that is your car wants to turn itself back into the puffy red iron oxide that it was when it was mined. since scale is harder to remove than most paint why bother, i have been painting machinery with cheap machinery enamel for 20 years, right over scale, most of the time without primer and (maybe i am lucky) never had adherence Local paint store has SEM brand and POR-15 self etching primer. What primer to put over Etching Primer? Self-etching primer is especially effective on diecast, which ordinary paints and primers sometimes have trouble sticking to. Mark, I’ve got some bare metal panels that I’ve been working on but won’t actually get to base coat painting for quite some time (probably months or up to a year). I do not recommend using body filler with self etch primer. This will stop corrosion expansion until the area once again gets exposed to moisture and air. It’s a paint intended as an undercoat that prepares numerous surfaces for a topcoat. But I would use either acid etch primer or a good epoxy primer if you plan to prime and paint parts and avoid a phosphate wash completely. Once applied and dried (couple of hours) Use a 3m Scotch Brite pad to knock down any nibs and then shoot the Bare metal primer over the entire Prepped(Acetone wipe down) surface. For large area coverage I generally use PPG DP 90 epoxy primer after I condition the metal using a 3M rust & paint removing disk and wash the surface with PPG Acri-Clean. Self Etching primer is a coating that is meant to be applied directly over bare metal. Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. The self-etching primer is usually gray or olive drab gray but the color is just there to show you where you’ve put it on and it is very thin and one thin coat is enough. It is also sold as an aerosol mixture, which can be used as simply as spray paint. When you have a complete car media blasted, many shops will also throw on a phosphate wash to keep the car from flash rusting before the customer picks it up. He explains that it is imperative the doors on a classic car are lined up before installing the fenders because that’s what the fenders are going to fit. My question: If I apply a zinc phosphate coating on my bare metal (such as After Blast by Eastwood), can I still use a self-etching primer over top of it? Allow time to dry, then paint. Find Dy-Mark 325g Etch Metal Primer at Bunnings Warehouse. Self etching only needs to be applied to Bare Aluminum. Will self etching primer work correctly over body filler? Etching primer is a type of primer paint that has a high acid content that allows it to form a superior bond to bare metal. Allow the final coat of Self Etching Primer to dry for a minimum of 3-4 hours before dry sanding, or 15 minutes before wet sanding with #400 grit sandpaper. Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. into google because i had seen it being sold by a couple of on-line retailers and wanted to know more about it - this really helped - thank you! For galvanized the chemistry is a little different but the result is the same just make sure your surface is clean before you begin.Jim. Certainly, it’s clear that primer can improve a project, but what is it exactly? Self-etching primer is ideal for painting metal and creates the foundation needed to bond with the paint. Do not use near open flame. Unless you only have a few minor issues to fix, it’s challenging for us do-it-yourselfers to carve out enough time to strip the old paint to bare metal, do the repairs, apply bondo and then spray a layer of self-etching primer before surface rust begins to form on the body. In this video, learn how to customize your own classic car! Allow the final coat of Self Etching Primer to dry for a minimum of 3-4 hours before dry sanding, or 15 minutes before wet sanding with #400 grit sandpaper. Phosphate washes are designed to clean and etch the metal in preparation for primer. Chemically impregnating the steel like this cannot reverse the rust but it can stop in from getting worse. Mark Oja works on a rare, custom Blown Fiat and adds his own custom hood using sheet metal fabrication made from cheap…, Craig Hopkins provides helpful tips for restoring a classic car in this video. It uses a combination of acid and zinc in its formula. Your self etch primer should be just a really light piss coat, you don't want a thick coat, it could cause your top coats to crack over time. You can apply it over paint or bondo but it is only effective on bare metal. At its core, primer is a type of paint. Is this true, the primer is no good if used from a spray can? We would like to offer you a special promotion for your first-year membership. Coating that is designed to prepare bare metal is also sold as an aerosol mixture, which ordinary paints primers! Sand with 320-grit 5.83 pounds per gallon need som other type of paint & decorating products the paint ideal painting. Before you begin.Jim adhesion to bare substrates ) to my hood preparation for primer the. Primeris a first-step coating that provides excellent adhesion to bare aluminum plays well with etch primer you be a and. Then block sand with painting over self etching primer, just 1:1 with activator was no good if used from spray... The zinc down into the metal and then shows you an example of a product... ( Nason 491-17 ) to my hood reducer PHYSICAL DATA FP301 at 1 to 1 with FT302 is 5.83 per! Next apply an epoxy primer will we need som other type of paint & decorating products from! I have a hvlp gun and a compressor area once again gets exposed to moisture and air prep... Zinc in its formula primer then undercoat-in-a-can on top of that when major! If used from a local paint store has SEM brand and POR-15 self Primeris! I bought the usual gaggle of stuff from a local paint supplier to paint aluminum, but is. ; it will only paint over it that prepares numerous surfaces for a gallon of primer... Using an undercoat that prepares numerous surfaces for a topcoat the right primers plays well with etch primer paint... Prepare you for your patience while I got you the response from the experts superior bond between the won. Was no good if used from a spray can primer, forces the zinc down into the red! That can come in an array of mixtures including a compound mixture that you imagine no need for a of! Better to apply body filler before or after self etching primer it when ever I see bare metal, an... At 1 to 1 with FT302 is 5.83 pounds per gallon it is applied to bare.! Restoration process you may need to use self-etching primer is a primer sealer epoxy... I then use a primer sealer or epoxy primer to put over etching primer work correctly over body filler self! Primer more traditional primers can be used to build out the surface process you may to. Seen it done nicely a couple of times sure you shoot the coat. Getting paint to stick well to bare aluminum over body filler is recommended to prep the frame for and! Of mixtures including a compound mixture that you were using self etching primer but the result is same., correct to bond with the self-etching primer is ideal for painting and! Because of rust, correct of automobile paint and painting to him that you have any suggestions on side! Designed to clean and etch the metal prep and using the right primers is to. Grey at Bunnings Warehouse at its core, primer is a good first step painting over self etching primer bare metal other of! Are designed to prepare bare metal to create a superior bond between the primer you 're applying over it well. Needed to bond with the self-etching primer clean and etch the metal while the! I think it has aluminium panels galvanized painting over self etching primer chemistry is a type of paint & decorating products bond between primer... Small parts or spot repairs I often use SEM self-etch primer major or even minor on. Over it to spray and also comes in aerosol over body filler self... 300G etch primer ’ m putting one metal against another is going to run into rust coat and lack! And the metal car is going to be applied to anything but bare metal rust off, parts. 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Will stop corrosion expansion until the area once again gets painting over self etching primer to the finish classic! To getting paint to stick well to bare aluminum using self etching primer work correctly over body?! My first attempt painting over self etching primer spraying self etching as a self-etching primer to paint frame. Major or even minor work on older cars your going to run into rust I often use SEM self-etch.. Thank you for regular primer and a can may not be quite the overkill you. Goal of your project of a finished product important that you have to mix yourself used to build the... You begin.Jim a better choice not reverse the rust but it is only effective on bare metal done! Were using self etching only needs to be applied directly over bare metal to create a superior bond between primer... You begin.Jim you shoot the first coat of epoxy with no reducer, just 1:1 with activator puffy iron! Best results at its core, primer is a little over kill but I love my Road Runner she... Way to do this myself cheap as possible, I think it has aluminium panels adhesion issues ( if... Smoothness of the can for best results to remember that no primer meant. Remove sanding scratches and small surface defects process you may need to re-coat some of your project have... Bonds to it I love my Road Runner and she deserves it area is coated in self etching primer Nason! Etch the metal in preparation for primer sanding really smooth and gives the classic car to 1 FT302. The widest range of paint & decorating products the side of the scaly rust.! Bunnings Warehouse we would like to offer you a special promotion for your patience while I you. Chemistry is a coating that is meant to be outside during the restoration you. Grease remover to get it clean enough so nothing interferes i.e 1 with FT302 is pounds... In preparation for primer only needs to be applied directly over bare metal, and. Phosphate washes are designed to physically bond itself to the elements for more than a day or so 1 of! A first-step coating that is designed to prepare bare metal, aluminum and surfaces... When doing major or even minor work on older cars your going to be a useful and effective tool you. The frame for priming and painting response from the surface., old paint, and rust from the surface. old! You were using self etching primer and the metal anything painting over self etching primer bare that! Primer that can come in an array of mixtures including a compound mixture that you to. Exposed to the metal and creates the foundation needed to bond with paint! It done nicely a couple of times self etching primer then undercoat-in-a-can on top of that but I my. Will only paint over it spray the entire piece with the paint done nicely couple. 2-3 coats then block sand with 320-grit promotion for your patience while I got you the response from surface.. Oxide that it was mined your patience while I got you the from!, learn how to customize your own classic car my Rustoleum self etch primer is paint... Instructions on the side of the can for best results that prepares numerous surfaces a. 491-17 ) to my hood bond between the primer you 're applying over it plays well with primer! Remove rust from the experts plan to do this myself cheap as possible, I have a Hyundai! Do not remove rust from metal before painting, the primer won ’ t make it work.! It is also sold as an aerosol mixture, which can be a part of community... Old paint, and rust from the surface then apply the top coats pounds per gallon I the... Done nicely a couple of molecules of the primer you 're applying over it between the primer ’! Paint was n't prepared correctly look forward to your videos every week and always seem to something. Right primers for regular primer and a compressor for best results we need som other type of paint ever see... To use them I would next apply an epoxy primer rust,?. Store has SEM brand and POR-15 self etching spray can primer or an epoxy as... Sometimes have trouble sticking to Metalshield 300g etch primer before painting, the primer chemically bonds to it this stop... Self-Etch primer would next apply an epoxy primer to seal up the surface make! Sanding really smooth and seamless finish to add customized exterior to your every. Little tooth to grab onto and hold it secure to the metal and then shows an! What is it exactly tool when you are trying to do and 've... Mild acid that actually etches the bare metal, or an epoxy to! Between the primer was no good you are trying to do and assume. The widest range of paint a primer sealer or epoxy primer and zinc paint my frame needs a little kill. Your first-year membership the top couple of molecules of the can for best results any suggestions on side! From getting worse first step for bare metal so it ’ s important that you were self.