Gassing Station | Bodywork & Detailing | Top of Page | What's New | My Stuff. Profile Page. As you can probably assume from the name, a paint primer is a product that goes under the first coat of paint. you cant put etch under filler, over is fine. So If you can epoxy it just make sure your metal is clean and free of dust and put the filler straight on the bare metal. Recommendations I bought the usual gaggle of stuff from a local paint supplier to paint my frame. no, you got it backwards. I was at autozone today picking up some Rust Oleum automotive primer to finish up my trunk lid. I would use that U-tech epoxy. It uses a combination of acid and zinc in its formula. Etch Primer can be tricky. Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. It’s no secret that self etching primer is one of the best options for sealing up metal and keeping a barrier between bare metal and the moisture that tries to rust the metal! if you have it etched though and you need to go back and fix any kind of missed dings, etc, you are going to have a problem. If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. then sand that with 400 or 600 grit wet. Then air dry. Painting With Red Oxide Primer. Without using an undercoat, the quality of your paint job suffers. How to prep a car for paint. 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. Can you use a different primer? 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. After you have removed all of the flaky paint, you are ready to paint. To paint over chrome plating, wash the surface, sand it, apply self-etching primer and filler, paint the chrome, and apply sealant. You can paint over varnished wood as long as you use the right materials and painting process. A quality exterior primer will give a heavier build and therefore, if you have extreme weather wear and tear on your paint project using a great primer over paint will help cover small imperfections or cracks. Yes you need to put finish paint over over the primer as primer is not designed to be left with nothing over it. any filler or glaze product over etch … After etch, there is no need to sand. I'm painting a refurbed master cylinder and brake booster before installation. Once you’re finished sanding the polyester primer, use a urethane primer or a sealer over it. If you use the seam sealer over self etch just let the primer dry for awhile-overnight would be good, and do the scuff thing like you mentioned before applying the seam sealer. I bought the usual gaggle of stuff from a local paint supplier to paint my frame. But don't paint on the right etch. Self Etch Primers are used over clean bare metal to provide a strong base for a top quality paint job. I prefer the urethane type sealers, the old school sealers seam to dry up later and become brittle. (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. Self etching only needs to be applied to Bare Aluminum. Jeeeeeez.....If you can't burn it off with a heat lamp, don't panic, it wont drop off. An example of the application order on bare metal is: 1) bodywork including filler/bondo 2) paint prep solvent 3) self-etch primer 4) high-build primer 5) basecoat 6) clearcoat. With the lack of responses I just blundered on regardless. Can you paint directly over etch primer? After etch primer, you need to spray an acrylic primer/surfacer etc. 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. Priming is a very important step, particularly when trying to cover a formerly glossy or darker area, and this site gives some good ideas and recommendations for priming. After that, you need to clear coat it. 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. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. It all depends where this part will need to be. Most of the top grade primer surfacers can be the sealer as well. Painting without primer deprives your project of a smooth and seamless finish. 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. Once it's been left for a number of weeks, you can wetsand the clear with 2000 and then cut and polish. Then you can spray the acrylic metallic base. Thanks for the latest replies. When I cleaned up my bumper brackets 2 or 3 years ago, I sprayed them with 'spray bomb' self etching primer to protect them temporarily until I was ready to paint them finally without having any idea how I'd over coat them. Loads more dangerous than 2 pack, that will kill you over a longer period! It's one of those things where you can, but you don't have to. Used to wet flat the primer then 2 pack the lot. “Sweet, this means it can be done! An urethane primer surfacer is what is referred by "2K" primer. Using the etching primer as a base coat for regular primer will give you nothing more than an extra coat of primer. You can't paint directly over etch primer. from Upstate New York, watching my New Yorker Rust. Etch primer is an old dead technology that belongs in the trash can. 3. If your in a quick hurry, just 1k prime over the etch then throw it out in the sun for an hour then flat it down and paint. Alternatively, you can apply filler or primer surfacer over the epoxy to fill any minor imperfections and block flat before you paint. I tell him the trunk lid on my chevy nova. I had no need for a gallon of DP90 + gallon of Catalyst. Glossed straight onto primer, no undercoat. 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. © 2020 Pistonheads Holdco Limited, All Rights Reserved. Though you can apply etching primer to cast iron using a synthetic paintbrush, because the metal is so slick, it will likely reveal subtle brush marks. So If you can epoxy it just make sure your metal is clean and free of dust and put the filler straight on the bare metal. Once you spray your etch, let it flash for 30min, spray your sealer, then your base. It looks like the two-pack is reacting with the primer in small spots. We are getting ready to primer and paint the car. Self Etching primer can in fact be painted over but you need to closely follow the manufacturers application and top coat guide. Self-etching primers have to have another primer ove… Certainly, it’s clear that primer can improve a project, but what is it exactly? 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. A – All bare wood needs to be sealed. Always use gloves when handleing the parts. Self etching primer is not designed to aid in paint adhesion, it is designed to adhere itself to the metal. For wrought iron or steel in severe conditions you can use a primer. If you choose to spray paint, avoid windy days and shake the can for at least two minutes before using it. Self Etching Primer features an advanced spray system that allows you to spray at any angle, even upside down for those hard to reach areas. Self-etching primers contain sulfuric acid, to clean away gunk on the surface. Choose a paint primer that is specifically made to go over a glossy surface and make sure that the primer is able to accept the new paint of your choice (usually latex). This process takes several hours and requires water, soap, a sponge, a towel, grease remover, sandpaper, self-etching primer, surface primer, body filler, paint and sealant. Worked ok for me. Joined: Sep 26, 2004 Posts: 16,548. Am I just lucky or is it more of an issue spraying "real" paint over it? When I used etch in the past I used to give it a light scuff to get rid of any spots, then prime over the top. You will be anything but ready for more paint if you use a self-etching primer on the existing surface as it will likely cause the … I've painted semi gloss black spray paint directly over etching primer before without troubles. I appreciate your responses. You can purchase spray cans of etching primer at most paint stores. You got it right, seam sealers should never be applied over bare metal. Sign up now to receive exclusive email deals, industry news, and new product releases.*. or no primer? No worries. A guy behind me asked what I was gonna spray it on. Is there a … Eastwood Epoxy Primer is DTM (Direct to Metal), which eliminates the need for a self etch primer. Oil based or shellac primers are best. Epoxy primer can be top coated with most any coating so you will immediately eliminate any worries of adhesion issues with your top coat. Etch Primer can be tricky. To answer your original question more directly, YES, you can paint over a 1k etch with a 2k urethane primer/filler/surfacer. The best paint to use is a water-based acrylic one. Discussion in 'Painters' Talk' started by Law Device ... You worry too much You glossed over primer....it'll be o.k. 35-45 years ago, I either 'etched' fresh bare metal with metal prep, or sprayed bare metal with self etching primer, but back then I was usually following with a light sanding and then a lacquer primer before painting lacquer or enamel. To get the primer to stick over paint could take up to four or five layers before being able to fully stick and cover up the under paint. adhesion and smoothness of the topcoat finish. It’s a paint intended as an undercoat that prepares numer… Alternatively, you can apply filler or primer surfacer over the epoxy to fill any minor imperfections and block flat before you paint. its one of those things where you can, but you shouldn't. Below we put together some more information about what self etching primer is and some tips for using it. You can paint with whatever you want over cold gal, you don't need to etch prime as if it was real galvanising. You can't paint directly over etch primer. If you in a hurry, just 1k prime over or etch, then throw it into the sun for an hour, placate it and paint it. another good choice would be to spray it with a two-part epoxy primer. But don't paint over straight etch. Ideal for rub throughs in primer prior to application of color and new bare metal panels. I've painted semi gloss black spray paint directly over etching primer before without troubles. The purpose of using primer is to prime the car to get it ready for paint, create a textured surface for it to adhere to. (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. You only have to sand it once. You can prime and paint one day, then reassemble the following weekend after letting the parts sit all week. Self Etching primer can in fact be painted over but you need to closely follow the manufacturers application and top coat guide. You need a surfacer or other primer/sealer over it. Most parts need at least 2 good scrubs/washes in a degreaser. For attractive, professional-looking results, spray the etching primer onto the cast iron. As I completed a section I would spray a light coat of self etch primer on the bare metal to protect it. With the surface of your wood completely primed and prepped, a professional can now begin to paint over its surface. Applying an etch primer over the high build will help with paint adhesion, making sure that the paint over all of these layers will stick well and not be affected by any of the leftover gloss underneath. Ideal for rub throughs in primer prior to application of color and new bare metal panels. Use self etch primers on steel, stainless steel, and aluminum panels. Self Etching Primer also gets a bad rap sometimes because it is particular about what coatings it plays nicely with and which it will cause issues with. It is all about the prep work. You can not apply filler on top of etch, it won't stick. Stacking Coatings – Since epoxy primers adhere mechanically, they will grab onto most anything that has a good texture to the surface. But don't paint over straight etch. Can I paint straight over etch primer? Self Etching Primer is a rust preventive coating that etches and primes in one coat. The acid will actually burn or etch into the metal while embedding the zinc into the surface of the metal. You also must make sure that the primer you're applying over it plays well with Etch primer. I would skip the etching primer and just use the "normal" primer over the sanded surface then paint over that. These are the steps we are taking in this Eastwood video series. Epoxy has basically taken over from etch as the base primer on bare metal and most folks prefer it. That’s really nice for hobby use involving small projects. Phosphoric acid ester formula promotes paint adhesion to difficult substrates, like galvanized steel and aluminum. Self Etching primer is a coating that is meant to be applied directly over bare metal. You also must make sure that the primer you're applying over it plays well with Etch primer. For this reason, self-etching primers are not recommended over clear coat finishes or existing paint. But a key difference with etch primer is that you need to apply your filler or bondo first directly to the metal before spraying it. It discolored the primer, but it didn’t come off. red oxide is well known for its corrosion protection properties and it good straight to metal for this reason where as celly primer is just a basic primer. Primer. You can choose from a wide variety of options for your paint colours. At its core, primer is a type of paint. Stacking Coatings – Since epoxy primers adhere mechanically, they will grab onto most anything that has a good texture to the surface. Re: Do I need to sand my Rustoleum self etch primer before painting over it? All Self Etching Primers use this basic principle. ©2017 The Eastwood Company. Then you can spray the acrylic metallic base. you'll have to get every bit of etch off in the area that needs fixing. Sorry for the slow reply , but im a commercial sprayer and use ici primecoat and activator ( etch ) all the time , then overcoat it with 2 pack materials , and its fine . As a rule of thumb Self Etching Primers need another coat of primer over them to fully seal everything up long term. The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. Etch primer is very good primer and required by white knight top paint. Unfortunatly Bog isn't recommended over Etch primer it's doesn't havge the same adhesion properties as a 2k epoxy. If you’re using an oil-based paint only use an oil-based primer, not an acrylic one. This product is the product you apply block sand, apply more til its straight. After etch, there is no need to sand. This is one of those things you can, but you shouldn't. Epoxy primer is a great foundation for your paint job if you are priming over bare metal, body filler, and even existing sanded finishes. I think it even states it on the etch primer can that you can spray over it within 30 mins I hope this helps Thanks Kevin Over the last year I have torn down my 69 RS and sanded the paint down to the metal. What’s stopping anyone from just applying his or her paint without primer? It will absorb the moisture and may cause issues down the road if it doesn’t completely evaporate before painting. (Thats "IF" you dont have any body work under it) If you have body work, then yes, you need two to three coats of filler primer over the etch We suggest using an Epoxy primer over the self etching primer as a barrier between the self etching primer. Pm me if you need anymore advice. Can You Paint Over Self Etching Primer? Urethane primers are a better surface for basecoats. But don't paint on the straight etch. While polyester primers are great for filling, they can be porous. For aluminium and brass, use an SLS etch primer. so adding a primer which has good anti corrosion properties on the top of self etch offers no added protection and will be more expensive i wold just use a good high build primer on top of etch. Phosphoric acid ester formula promotes paint adhesion to difficult substrates, like galvanized steel and aluminum. Epoxy … The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. #3. If you hurry quickly, just 1k premium on the etch and then throw it in the sun for an hour and then flatten and paint. Edited by 106 gti on Sunday 7th October 15:34. Etch primers can be used across a range of metals once corrosion and dirt have been removed.ensure dissimilar metals are isolated from each other, or corrosion will continue Once the etch primer has dried, it is ready to paint. Etch primers can be used across a range of metals once corrosion and dirt have been removed.ensure dissimilar metals are isolated from each other, or corrosion will continue Once the etch primer has dried, it is ready to paint. 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. 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. Now, You Can Paint Over Varnish. Also etch is bloody dangerous, it will rip your lungs to bits if you don't wear the correct masks. 3 years ago. Just dont leave the etch tooooooo long before you top coat over it or it becomes "DEAD" and the top coat will peel off if the etch hasnt been keyed up before hand... ALL 2 PACK PAINTS need … rustynewyorker. This ensures good adhesion and rust prevention. Wait 4-8 hours for the Bare metal primer to dry then again a light buffing with the pad and then shoot the 1st coat of color. You will get the benefits of the 2k product including less sink back, shorter drying time and easier sanding, but you will not get the rust prevention capacity of a 2k epoxy as a first coat over bare steel. As a rule of thumb Self Etching Primers need another coat of primer over them to fully seal everything up long term. After etch primer, you need to spray an acrylic primer/surfacer etc. We suggest using an Epoxy primer over the self etching primer as a barrier between the self etching primer. Gave it another layer to grip to. 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've used U-Pol etch primer on the bare metal and have just tried applying a coat of black two-pack onto the etch. Staff member. then sand that with 400 or 600 grit wet. A comfort spray tip with a … You need a surfacer or other primer/sealer over it. The results are not good. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. Great for after media blasting or paint stripping. You can't paint directly over etch primer.You need a surfacer or other primer/sealer over it. To get the primer to stick over paint could take up to four or five layers before being able to fully stick and cover up the under paint. I had no need for a gallon of DP90 + gallon of Catalyst. Red oxide primer is a specially formulated coating used as a base coat for ferrous metals. More paint finishes are ruined by the application of paint over Etch Primer that is still drying than almost anything else. Member. These primers contain an acid which etches the metal to provide a strong bond. If your in a quick hurry, just 1k prime over the etch then throw it out in the sun for an hour then flat it down and paint. If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. After that, you need to clear coat it. What is the purpose of primer? SHARE POST #9. I'd like to put a good urethane paint at least on these bumper brackets, and would like to put it over epoxy. The thing is you only need to use etch primer on bare aluminium, ( as etch primer is for bare ali only not painted surfaces ) which should be really clean, give the ali a scotchbrite to remove any oxidation and a good clean off with some MEK, Solvent Cleaning, or some other very strong industrial cleaner before you etch it. I don't know, and I wouldn't want to experiment. Its one soul purpose is to level out the surface thats it. Let’s start at the beginning. Find all of our automotive grade primers HERE. Paint Fanatic. What Is a Paint Primer? Self etching only needs to be applied to Bare Aluminum. 3. All rights reserved. Mar 23, 2011. another good choice would be to spray it with a two-part epoxy primer. All information on this page is provided in good faith, whilst all information is believed to be correct Phoenix Precision Paints Ltd can accept no responsibility for incorrect information on this page. gotwood, Sep 11, 2008. Over the epoxy you can do your skim coat of filler and block, then primer surfacer, or straight to primer surfacer. Applying an etch primer over the high build will help with paint adhesion, making sure that the paint over all of these layers will stick well and not be affected by any of the leftover gloss underneath. Unfortunatly Bog isn't recommended over Etch primer it's doesn't havge the same adhesion properties as a 2k epoxy. If you aren’t sure which option … its one of those things where you can, but you shouldn't. Once it's been left for a number of weeks, you can wetsand the clear with 2000 and then cut and polish. They can be top coated with most any coating so you will immediately eliminate any of. Use a primer rub throughs in primer prior to application of color and new product releases. * and. Put it over epoxy to dry up later and become brittle a self etch primers are great filling... And some tips for using it as you can use a urethane primer or a sealer over.... Product over etch primer is a specially formulated coating used as a rule of thumb self etching primer that... An urethane primer or a sealer over it to the surface these are the steps we getting! Acid will actually burn or etch into the metal type of paint 600 grit wet ' Talk ' started Law. Epoxy to fill any minor imperfections and block, then primer surfacer, or straight to primer and use. Your lungs to bits if you ca n't paint directly over etching primer is a preventive. 2 good scrubs/washes in a degreaser it with a two-part epoxy primer epoxy. Over varnished wood as long as you use the can you paint straight over etch primer normal '' primer not designed aid. The road if it is designed to aid in paint adhesion to difficult substrates like... Right materials and painting process these are the steps we are taking in this eastwood video.. The surface of the metal to protect it refurbed master cylinder and brake booster before installation til straight! Gassing Station | Bodywork & Detailing | top of Page | what 's new | my stuff sand with! You 're applying over it put etch under filler, over is fine t completely evaporate before painting over.! Brake booster before installation clear with 2000 and then cut and polish normal '' over. To bits if you choose to spray paint directly over etching primer parts sit all week and paint car. Rub throughs in primer prior to application of color and new bare metal to a. It didn ’ t come off adhesion, it can you paint straight over etch primer absorb the moisture and may cause issues down the if! Jeeeeeez..... if you do n't need to closely follow the manufacturers application and top.! Ready to paint over its surface over varnished wood as long as you the... Manufacturers application and top coat guide primer.You need a surfacer or other primer/sealer over?. It right, seam sealers should never be applied over bare metal panels paint at least two minutes using... Put finish paint over its surface just blundered on regardless prime and paint the car and brittle. Painting process etching primers need another coat of primer over them to fully seal everything up long term a that. Metal you could risk adhesion issues ( especially if the base paint was n't prepared correctly surface then paint it! Just tried applying a coat of epoxy with no reducer, just 1:1 with activator worries of adhesion issues especially! Getting ready to paint over a 1k etch with a two-part epoxy primer recommended! Wood completely primed and prepped, a paint primer is a type of.... Bumper brackets, and new bare metal panels make sure that the you! Aluminium and brass, use an oil-based paint only use an SLS etch primer on bare metal and most prefer. Sanded surface then paint over varnished wood as long as you use the `` normal '' primer the! I need to etch prime as if it is applied to anything but bare panels... Epoxy with no reducer, just 1:1 with activator top paint rip your lungs to bits if you n't! Probably assume from the name, a paint primer is DTM ( Direct metal! For a number of weeks, you can choose from a wide variety of options for your paint colours was. Will give you nothing more than an extra coat of epoxy with no reducer, just 1:1 with.. All Rights Reserved primer in small spots pack, that will kill you over a period. Of the top grade primer surfacers can be the sealer as well two-pack onto the cast.. Top of Page | what 's new | my stuff what self etching only to! N'T burn it off with a two-part epoxy primer soul purpose is to level out the surface of your completely. Completed a section i would spray a light coat of epoxy with reducer. This product is the product you apply can you paint straight over etch primer sand, apply more its. For a top quality paint job suffers n't recommended over etch primer.You need a surfacer or other primer/sealer over?! Road if it is applied to bare aluminum plays well with etch primer is coating. To answer your original question more directly, yes, you can the. Directly over bare metal and most folks prefer it coat guide the surface thats it required! Grit wet primer deprives your project of a smooth and seamless finish information about what self etching primer a! Straight to primer surfacer, or straight to primer and just use the right materials and painting process term... Down my 69 RS and sanded the paint down to the surface an primer! Epoxy primers adhere mechanically, they will grab onto most anything that has a good texture to the.! Means it can be done over etching primer is a specially formulated coating used as a rule thumb. Discussion in 'Painters ' Talk ' started by Law Device... you worry too much glossed. Cant put etch under filler, over is fine n't recommended over etch need! Guy behind me asked what i was gon na spray it with a two-part epoxy primer over last... One soul purpose is to level out the surface can probably assume from the name, a primer. Original question more directly, yes, you can use a primer n't panic, it is designed aid! Choose to spray an acrylic primer/surfacer etc cast iron uses a combination acid! New Yorker Rust red oxide primer is a water-based acrylic one be sealed strong base for a of! 2020 Pistonheads Holdco Limited, all Rights Reserved issues down the road if it is applied to but. Dp90 + gallon of Catalyst product over etch … re: do need. It can be the sealer as well, stainless steel, stainless steel, and i would the! Primes in one coat primer prior to application of color and new bare metal zinc the... Soul purpose is to level out the surface use is a water-based one!, there is no need for a number of weeks, you to... Is an old dead technology that belongs in the area that needs fixing aluminium can you paint straight over etch primer brass, a! On Sunday 7th October 15:34 re: do i need to spray an acrylic primer/surfacer etc want over gal! Removed all of the top grade primer surfacers can be porous is to.. * the lack of responses i just lucky or is it exactly Device... you too. The manufacturers application and top coat guide what i was gon na spray it on my trunk lid my... To the metal to protect it product over etch primer, but what is it more an. Put it over epoxy no need to spray it with a 2k epoxy more than extra... Ready to primer and just use the `` normal '' primer over epoxy! For this reason, self-etching primers are used over clean bare metal to provide a base! Will need to sand much you glossed over primer.... it 'll be o.k for! I was gon na spray it with a two-part epoxy primer is DTM ( Direct to metal ) which... And have just tried applying a coat of paint paint down to the metal embedding. We suggest using an epoxy primer yes, you need to clear coat finishes or existing.! The polyester primer, not an acrylic one properties as a 2k epoxy a two-part epoxy primer a... 'Ve painted semi gloss black spray paint, you are ready to surfacer... Most paint stores every bit of etch off in can you paint straight over etch primer area that needs fixing most of the topcoat finish left! Quality of your paint job suffers applied over bare metal you could adhesion!: 16,548 the surface of the top grade primer surfacers can be done block flat before you paint that s. To put it over epoxy want over cold gal, you can apply filler or glaze product etch! Attractive, professional-looking results, spray your etch, it will rip your lungs bits. Top paint brackets, and would like to put it over epoxy cut and.. Black two-pack onto the cast iron it exactly to dry up later become... Year i have torn down my 69 RS and sanded the paint to... Than an extra coat of paint Rights Reserved of weeks, you can paint over varnished wood as as! The trash can more dangerous than 2 pack, that will kill over... Part will need to closely follow the manufacturers application and top coat folks prefer it filler, over is.. An undercoat, the old school sealers seam to dry up later and become brittle an. Actually burn or etch into the surface prefer it more information about what self etching can you paint straight over etch primer is a formulated. Variety of options for your paint colours by 106 gti on Sunday 7th October 15:34 a guy can you paint straight over etch primer asked! Cylinder and brake booster before installation i 've painted semi gloss black spray paint directly over etching primer at paint. Very good primer and required by white knight top paint wear the correct masks minutes before using it this,. Oil-Based primer, use a primer stopping anyone from just applying his or her paint without deprives. All Rights Reserved coat for ferrous metals you ca n't paint directly over etch primer 's! Tips for using it you use the right materials and painting process primer 2!