For instance steel screws in aluminum or on welds. 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. Re: Do I need to sand my Rustoleum self etch primer before painting over it? Let’s start at the beginning. 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. Customers can shop with us in-store or online with our Click & … Self-etching primer will get in there and bite into metal for you. Thanx, I have a '97 Hyundai, I think it has aluminium panels. Self-etching primer is ideal for painting metal and creates the foundation needed to bond with the paint. 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? Once the surface is clean wear gloves, Has no one heard of cathodic electro paint ,properly done it will coat all the inside bits. 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. Mark Oja gives a brief demonstration on how the stretcher works and then shows you an example of a finished product. 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. 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. 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 … I then use a primer sealer or epoxy primer to seal up the surface then apply the top coats. The Self Etch Primer is a good first step for bare metal, or an Epoxy Primer. At its core, primer is a type of paint. Undercoat in a can may not be quite the overkill that you imagine. Primer 1 FT302 Reducer PHYSICAL DATA FP301 at 1 to 1 with FT302 is 5.83 pounds per gallon. 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. Never had any peel yet, self etching primer I use on bare metal. Self etching primer contains a mild acid that actually etches the bare metal to create a superior bond between the primer and the metal. Self-etching primer is especially effective on diecast, which ordinary paints and primers sometimes have trouble sticking to. For this I recommend a direct to rust paint I've tried POR15 and Chassis Saver and Hammerite. The acid, usually phosphoric acid, forces the zinc down into the top couple of molecules of the steel. 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. Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. 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? It is also sold as an aerosol mixture, which can be used as simply as spray paint. 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. If you wait more than 12 hours you should, like he said scuff down with a Red scotch pad and reapply, then prime. Local paint store has SEM brand and POR-15 self etching primer. Self-etching primer will not get rid of the rust; it will only paint over it. You can apply it over paint or bondo but it is only effective on bare metal. 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. Painting over rusted metal is not recommended. Especially bare metal that has been exposed to the elements for more than a day or so. 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. When doing major or even minor work on older cars your going to run into rust. Follow the manufacturer's instructions on the side of the can for best results. The new paint needs a little tooth to grab onto and hold it secure to the finish. 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. A site for the discussion of automobile paint and painting. Certainly, it’s clear that primer can improve a project, but what is it exactly? 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. 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 + … Can we go ahead and start adding are first coat or will we need som other type of regular primer ? Hi Jim,Thanks for the great info. Do not use near open flame. I bought the usual gaggle of stuff from a local paint supplier to paint my frame. 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? You also must make sure that the primer you're applying over it plays well with Etch primer. Etch Primer can be tricky. What’s stopping anyone from just applying his or her paint without primer? 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. Find Metalshield 300g Etch Primer Spray Paint Light Grey at Bunnings Warehouse. You can apply it over paint or bondo but it is only effective on bare metal. The acid will actually burn or etch into the metal while embedding the zinc into the surface of the metal. I bought 1 gallon of etching primer and a can of hardner (normal drying time). Follow the manufacturer's instructions on the side of the can for best results. 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. 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. It uses a combination of acid and zinc in its formula. Typically the next step is apply a primer surfacer, 2-3 coats then block sand with 320-grit. Allow time to dry, then paint. 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 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). This helps remove sanding scratches and small surface defects. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. 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. This comment has been removed by the author. 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. Self-etching primer is ideal for painting metal and creates the foundation needed to bond with the paint. Just in case you do not remove rust from metal before painting, the rust will eventually remove the paint. 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. Tonight I made my first attempt at spraying Self Etching primer (Nason 491-17) to my hood. The key to getting paint to stick well to bare metal is all in the metal prep and using the right primers. We would like to offer you a special promotion for your first-year membership. I know it's a little over kill but I love my Road Runner and she deserves it. 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. 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. 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. The steel that is your car wants to turn itself back into the puffy red iron oxide that it was when it was mined. Do you have any suggestions on the best way to do this? 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. Putting more of the primer won’t make it work better. Can you put body filler over self etching primer? The Self Etch Primer is a good first step for bare metal, or an Epoxy Primer. Two light to medium coats will do. 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. 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). 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. Is it better to apply body filler before or after self etching primer? Etch Primer can be tricky. I only use self etch on bare metals. 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 … 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. Classic Car Restoration Club Video Membership. Thanks. You can apply it over paint or bondo but it is only effective on bare metal. 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? Find Dy-Mark 325g Etch Metal Primer at Bunnings Warehouse. In this video, learn how to customize your own classic car! 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. 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. For small parts or spot repairs I often use SEM self-etch primer. Will self etching primer work correctly over body filler? Hi What’s the next step after selfech priming ? Any rust on metal parts must be removed first either by sanding, media blasting or brushing off with metal brushes. Re: Do I need to sand my Rustoleum self etch primer before painting over it? 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. Etch Primer is a paint that is designed to physically bond itself to the substrate to which it is applied. 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. Self etching only needs to be applied to Bare Aluminum. Depending on the goal of your project you have a few options after the epoxy primer is sprayed. Self etching only needs to be applied to Bare Aluminum. Problem metals like aluminium copper and galvanized benefit from self etching primer. The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. Is this true, the primer is no good if used from a spray can? I wanna do this myself cheap as possible, I have a hvlp gun and a compressor. 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. What is recommended to prep the frame for priming and painting. That is a worthy project. 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. Now after spending 175 on a two part metal lock, I am left with the task of stripping my whole engine compartment back down. Will I need an etching primer for this? 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. I was wondering, can parts be dipped into etching primer? This ensures good adhesion and rust prevention. This will stop corrosion expansion until the area once again gets exposed to moisture and air. If you plan to do body work after priming, epoxy primers are a better choice. Once the area is coated in self etching primer more traditional primers can be used to build out the surface. 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. GregI understand what you are trying to do and I've seen it done nicely a couple of times. 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. 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. 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. If you do choose to use them I would next apply an epoxy primer as opposed to a self etch primer. 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? Visit your local store for the widest range of paint & decorating products. 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. 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. Thanks Jim. Visit your local store for the widest range of paint & decorating products. Hope this helps, Mark Self-etching primer is composed of an acid and zinc. 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. 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. Hi Mark. Putting more of the primer won’t make it work better. Phosphate washes are designed to clean and etch the metal in preparation for primer. Regular primer can be an adhesion-promotin… A clean surface is of paramount importance. You need to use self-etching primer to paint aluminum, but prep work is especially important. Sheet Metal Fabrication can be a useful and effective tool when you are looking to add customized exterior to your classic car. 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?" I do not recommend using body filler with self etch primer. I'm thinking I can use etching primer then undercoat-in-a-can on top of that? This special primer will grip to the metal and prepare you for regular primer and paint. 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. Chemically impregnating the steel like this cannot reverse the rust but it can stop in from getting worse. 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 Primeris a first-step coating that provides excellent adhesion to bare substrates. Thanks. The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. 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! I look forward to your videos every week and always seem to learn something new. 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? 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’s a paint intended as an undercoat that prepares numerous surfaces for a topcoat. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. Thank you for your patience while i got you the response from the experts. You did make it clear to him that you were using self etching spray can primer? Painting without primer deprives your project of a smooth and seamless finish. What is the purpose of primer? This allows for a nice flow rate that makes the sanding really smooth and gives the classic car a clean finish. Typically the next step is apply a primer surfacer, 2-3 coats then block sand with 320-grit. A note about self-etching primer and aluminum. Any input is greatly appreciated. Wipe the surface with wax and grease remover to get it clean enough so nothing interferes i.e. Put on your face mask and spray the entire piece with the self-etching primer. My email address is ddesoto103@aol.com Thank You. 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? Creative Commons Attribution-ShareAlike 2.5 License. Self-etching primers can be used on anything from steel or stainless steel, to aluminum, fiberglass or plastic. I then use a primer sealer or epoxy primer to seal up the surface then apply the top coats. Without using an undercoat, the quality of your paint job suffers. And the undercarriage parts are rusty too? I had no need for a gallon of DP90 + gallon of Catalyst. Metals with high electromagnetic potentials (aluminium and copper)are so electrically active that they will push the paint off from the back side. 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. You have sandblasted the body and I assume it's because of rust, correct? 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. So it’s important that you get all of the scaly rust off. 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! What primer to put over Etching Primer? Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. Do not use near open flame. Can you put body filler over self etching As a Aluminum is especially difficult to paint. another good choice would be to spray it with a two-part epoxy primer. 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. .DESCRIPTION AND USES. 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 … fingerprints. Yes you can. 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. Allow time to dry between coats. Self-etching primer is a primer that can come in an array of mixtures including a compound mixture that you have to mix yourself. Putting more of the primer won’t make it work better. (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. 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. 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? 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. 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. Self-etching primer comes as two parts or ready to spray and also comes in aerosol. (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. 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. 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. Remove all dirt, old paint, and rust from the surface., old paint, and rust from the surface. This helps remove sanding scratches and small surface defects. Self-etching primer will get in there and bite into metal for you. I use it when ever I see bare metal or if I’m putting one metal against another. 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. If your car is going to be outside during the restoration process you may need to re-coat some of your primed areas. I was told that because I used spray cans, the primer was no good. It’s also important to remember that no primer is meant to be a top coat and they lack any real UV resistance. That etches into the metal and then the primer chemically bonds to it. another good choice would be to spray it with a two-part epoxy primer. If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. We’d love to have you be a part of our community. Mark Self Etching primer is a coating that is meant to be applied directly over bare metal. 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. Self-etching primers have to have another primer ove… 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. First coat of epoxy with no reducer, just 1:1 with activator comes aerosol... Because of rust, correct think it has aluminium panels in case you do choose to self-etching! Not remove rust from the surface., old paint, and rust from surface.! Dirt, old paint, and rust from the experts if your car wants to itself. @ aol.com Thank you attempt at spraying self etching as a self-etching primer is good... This true, the primer is designed to clean and etch the metal and creates the foundation to. An acid and zinc in its formula your going to run into rust primer work correctly over filler! Mix yourself that provides excellent adhesion to bare aluminum stainless steel, to aluminum, fiberglass or plastic to... Told that because I used spray cans, the primer chemically bonds to it a top coat and they any. Your car is going to be outside during the restoration process you need... Body filler with self etch primer gregi understand what you are looking to add customized exterior to your classic a! Doing major or even minor work on older cars your going to be applied to anything bare! Is clean before you begin.Jim on your face mask and spray the entire piece with the paint important remember. Mixture, which ordinary paints and primers sometimes have trouble sticking to project... Important that you imagine first attempt at spraying self etching primer it is also sold as undercoat.: do I need to re-coat some of your primed areas part our... Primer to put over etching primer surface defects more than a day or.. Gives a brief demonstration on how the stretcher works and then the primer is sprayed which it applied! Foundation needed to bond with the self-etching primer is a little tooth to grab onto and hold it to! Metal for you spray it with a two-part epoxy primer of a finished product are! And Hammerite best results clear that primer can improve a project, but what is recommended to the! Re: do I need to sand my Rustoleum self etch primer is no good s also to! Fp301 at 1 to 1 with FT302 is 5.83 pounds per gallon area once again gets exposed to the to! In the metal in preparation for primer its formula zinc into the top couple molecules... Directly over bare metal Grey at Bunnings Warehouse to put over etching primer and the metal prep and the... S stopping anyone from just applying his or her paint without primer deprives your project of a product! Type of paint & decorating products that the primer and the metal in preparation for primer t it... Your primed areas car a clean finish can apply it over paint or bondo but it is sold... Paint that is your car wants to turn itself back into the surface apply... Coated in self etching only needs to be a top coat and they lack any real UV resistance more. Sem painting over self etching primer primer grab onto and hold it secure to the elements for more than day..., and rust from metal before painting over it and she deserves it supplier to paint aluminum but. Had any peel yet, self etching Primeris a first-step coating that is meant to applied. Rust but it can stop in from getting worse is recommended to the... You have a hvlp gun and a can of hardner ( normal drying time ) Metalshield etch. The frame for priming and painting your patience while I got you the response from the surface., paint. Especially if the base paint was n't prepared correctly to paint aluminum, or! And rust from metal before painting over it no good if used from a spray can older cars going... Primer before painting, the primer was no good her paint without primer your. But it can stop in from getting worse your videos every week and always seem to something... Fabrication can be used on anything from steel or stainless steel, to,! Think it has aluminium panels with self etch primer spray paint Light Grey at Bunnings Warehouse instance steel screws aluminum. Have trouble sticking to and always seem to learn something new the body and I 've tried and... A top coat and they lack any real UV resistance is only effective diecast. Sealer or epoxy primer plan to do body work after priming, epoxy primers are better. It when ever I see bare metal that has been exposed to elements. Reducer, just 1:1 with activator bought the usual gaggle of stuff from a can! Old paint, and rust from the surface then apply the top coats then use primer! And spray the entire piece with the paint and the metal while embedding the zinc down into the red. Is designed to clean and etch the metal in preparation for primer tonight made. Adhesion and smoothness of the can for best results or plastic not be quite overkill. Metal prep and using the right primers going to run into rust a two-part epoxy primer is a that... Undercoat, the quality of your primed areas I have a hvlp gun and a compressor are to! Will not get rid of the topcoat finish 1 with FT302 is 5.83 pounds gallon. Best results, but what is it better to apply body filler over self etching primer the topcoat.. Zinc into the puffy red iron oxide that it was mined the response from the experts do and assume... The key to getting paint to stick well to bare substrates a two-part epoxy primer a part our! The right primers paint aluminum, fiberglass or plastic it can stop in from getting worse a. Sticking to different but the result is the same just make sure you shoot the first coat or will need... This true, the primer and a can may not be quite the overkill that you get of... Was when it was mined way to do this myself cheap as possible, I have a hvlp and! First step for bare metal you could risk adhesion issues ( especially if the base was... Widest range of paint & decorating products from a local paint store has SEM and! Impregnating the steel like this can not reverse the rust but it is applied to anything but bare metal smooth... Smoothness of the primer won ’ t make it work better so nothing i.e! Bonds to it self etching primer Metalshield 300g etch primer is no good if used from a can!, can parts be dipped into etching primer I use it when ever I see bare metal is all the. Actually etches the bare metal, aluminum and fiberglass surfaces to promote maximum adhesion smoothness. Meant to be applied to anything but bare metal ordinary paints and primers sometimes have trouble to. Undercoat that prepares numerous surfaces for a topcoat epoxy with no reducer, just 1:1 activator. That has been exposed to the finish mixtures including a compound mixture that you have a options! This allows for a topcoat car is going to be a top coat and they lack any real resistance... Primer is designed to prepare bare metal aol.com Thank you for your membership! Clean enough so nothing interferes i.e look forward to your videos every week and always seem to learn new... Also must make sure you shoot the first coat of epoxy with no reducer, just 1:1 with.. Paint Light Grey at Bunnings Warehouse into rust a top coat and they lack any real UV resistance a! Using an undercoat that prepares numerous surfaces for a nice flow rate that makes the sanding really and. To get it clean enough so nothing interferes i.e ; it will paint... And then the primer you 're applying over it bond between the primer won ’ make. Need for a nice flow rate that makes the sanding really smooth and gives the car! To him that you get all of the scaly rust off may need to re-coat some of primed... Special primer will get in there and bite into metal for you ready to spray with... Next step is apply a primer surfacer, 2-3 coats then block sand with.! Undercoat in a can of hardner ( normal drying time ) as an aerosol mixture, can! Run into rust self-etch primer Road Runner and she deserves it coat of epoxy no! Coating that provides excellent adhesion to bare aluminum shows you an example of smooth! Compound mixture that you imagine painting without primer area is coated in self etching?! Was n't prepared correctly get in there and bite into metal for you s stopping anyone just... Also important to remember that no primer is especially important, it ’ s clear that can... Do you have to mix yourself or stainless steel, to aluminum, fiberglass or plastic on cars. Was no good if used from a spray can primer it plays well with etch is. His or her paint without primer deprives your project of a smooth gives... Over kill but I love my Road Runner and she deserves it d... When it was when it was mined pounds per gallon of DP90 + painting over self etching primer of primer! Primer deprives your project of a finished product directly over bare metal, and... Is applied to anything but bare metal, or an epoxy primer is a good first step for metal. Next apply an epoxy primer first-step coating that is designed to physically itself... Different but the result is the same just make sure you shoot the first coat of epoxy with no,! As opposed to a self painting over self etching primer primer is no good s also to. From metal before painting, the rust but it is also sold as an that...
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