can you paint straight over etch 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. 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. I bought the usual gaggle of stuff from a local paint supplier to paint my frame. Can I paint straight over etch primer? Once you spray your etch, let it flash for 30min, spray your sealer, then your base. If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. Unfortunatly Bog isn't recommended over Etch primer it's doesn't havge the same adhesion properties as a 2k epoxy. 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. Always use gloves when handleing the parts. Epoxy primer is a great foundation for your paint job if you are priming over bare metal, body filler, and even existing sanded finishes. Alternatively, you can apply filler or primer surfacer over the epoxy to fill any minor imperfections and block flat before you paint. I would skip the etching primer and just use the "normal" primer over the sanded surface then paint over that. Yes you need to put finish paint over over the primer as primer is not designed to be left with nothing over it. 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). Edited by 106 gti on Sunday 7th October 15:34. As a rule of thumb Self Etching Primers need another coat of primer over them to fully seal everything up long term. You also must make sure that the primer you're applying over it plays well with Etch primer. I was at autozone today picking up some Rust Oleum automotive primer to finish up my trunk lid. Worked ok for me. Once it's been left for a number of weeks, you can wetsand the clear with 2000 and then cut and polish. The best paint to use is a water-based acrylic one. You can't paint directly over etch primer. For aluminium and brass, use an SLS etch primer. Stacking Coatings – Since epoxy primers adhere mechanically, they will grab onto most anything that has a good texture to the surface. 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. You can paint with whatever you want over cold gal, you don't need to etch prime as if it was real galvanising. gotwood, Sep 11, 2008. This is one of those things you can, but you shouldn't. Staff member. Self Etching primer can in fact be painted over but you need to closely follow the manufacturers application and top coat guide. While polyester primers are great for filling, they can be porous. Can you use a different primer? Without using an undercoat, the quality of your paint job suffers. any filler or glaze product over etch … 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. Recommendations Also etch is bloody dangerous, it will rip your lungs to bits if you don't wear the correct masks. Epoxy has basically taken over from etch as the base primer on bare metal and most folks prefer it. Self Etch Primers are used over clean bare metal to provide a strong base for a top quality paint job. 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. Below we put together some more information about what self etching primer is and some tips for using it. Glossed straight onto primer, no undercoat. As I completed a section I would spray a light coat of self etch primer on the bare metal to protect it. Re: Do I need to sand my Rustoleum self etch primer before painting over it? We suggest using an Epoxy primer over the self etching primer as a barrier between the self etching primer. Self-etching primers contain sulfuric acid, to clean away gunk on the surface. Self etching only needs to be applied to Bare Aluminum. 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 need a surfacer or other primer/sealer over it. What’s stopping anyone from just applying his or her paint without primer? You can purchase spray cans of etching primer at most paint stores. 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. 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. 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. rustynewyorker. It discolored the primer, but it didn’t come off. These primers contain an acid which etches the metal to provide a strong bond. 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. SHARE POST #9. You can not apply filler on top of etch, it won't stick. Ideal for rub throughs in primer prior to application of color and new bare metal panels. All Self Etching Primers use this basic principle. After etch primer, you need to spray an acrylic primer/surfacer etc. 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. 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. To paint over chrome plating, wash the surface, sand it, apply self-etching primer and filler, paint the chrome, and apply sealant. Member. 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 … Ideal for rub throughs in primer prior to application of color and new bare metal panels. You also must make sure that the primer you're applying over it plays well with Etch primer. You only have to sand it once. Most parts need at least 2 good scrubs/washes in a degreaser. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. then sand that with 400 or 600 grit wet. Jeeeeeez.....If you can't burn it off with a heat lamp, don't panic, it wont drop off. It is all about the prep work. Paint Fanatic. For attractive, professional-looking results, spray the etching primer onto the cast iron. or no primer? If you choose to spray paint, avoid windy days and shake the can for at least two minutes before using it. #3. Discussion in 'Painters' Talk' started by Law Device ... You worry too much You glossed over primer....it'll be o.k. It all depends where this part will need to be. Find all of our automotive grade primers HERE. You can't paint directly over etch primer.You need a surfacer or other primer/sealer over it. Great for after media blasting or paint stripping. Can you paint directly over etch primer? Can You Paint Over Self Etching Primer? Joined: Sep 26, 2004 Posts: 16,548. How to prep a car for paint. I'd like to put a good urethane paint at least on these bumper brackets, and would like to put it over epoxy. I'm painting a refurbed master cylinder and brake booster before installation. But don't paint on the straight etch. A guy behind me asked what I was gonna spray it on. 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. its one of those things where you can, but you shouldn't. 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. Phosphoric acid ester formula promotes paint adhesion to difficult substrates, like galvanized steel and aluminum. 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. 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! Once it's been left for a number of weeks, you can wetsand the clear with 2000 and then cut and polish. Mar 23, 2011. It looks like the two-pack is reacting with the primer in small spots. 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. These are the steps we are taking in this Eastwood video series. Over the epoxy you can do your skim coat of filler and block, then primer surfacer, or straight to primer surfacer. ©2017 The Eastwood Company. Then air dry. Then you can spray the acrylic metallic base. What is the purpose of primer? After etch primer, you need to spray an acrylic primer/surfacer etc. With the surface of your wood completely primed and prepped, a professional can now begin to paint over its surface. (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 Self Etching Primer is a rust preventive coating that etches and primes in one coat. A – All bare wood needs to be sealed. 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. After that, you need to clear coat 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. 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. For this reason, self-etching primers are not recommended over clear coat finishes or existing paint. 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. It will absorb the moisture and may cause issues down the road if it doesn’t completely evaporate before painting. Phosphoric acid ester formula promotes paint adhesion to difficult substrates, like galvanized steel and aluminum. At its core, primer is a type of paint. 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. (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. Alternatively, you can apply filler or primer surfacer over the epoxy to fill any minor imperfections and block flat before you paint. Profile Page. If you’re using an oil-based paint only use an oil-based primer, not an acrylic one. After etch, there is no need to sand. Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. Etch primer is very good primer and required by white knight top paint. Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. After that, you need to clear coat it. For wrought iron or steel in severe conditions you can use a primer. (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. Its one soul purpose is to level out the surface thats it. 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. I don't know, and I wouldn't want to experiment. 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. Gassing Station | Bodywork & Detailing | Top of Page | What's New | My Stuff. Oil based or shellac primers are best. 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 … Red oxide primer is a specially formulated coating used as a base coat for ferrous metals. I would use that U-tech epoxy. But don't paint on the right etch. Etch Primer can be tricky. If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. Urethane primers are a better surface for basecoats. no, you got it backwards. 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. Self etching primer is not designed to aid in paint adhesion, it is designed to adhere itself to the metal. Stacking Coatings – Since epoxy primers adhere mechanically, they will grab onto most anything that has a good texture to the surface. Thanks for the latest replies. To answer your original question more directly, YES, you can paint over a 1k etch with a 2k urethane primer/filler/surfacer. But don't paint over straight etch. another good choice would be to spray it with a two-part epoxy primer. 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. Self Etching primer can in fact be painted over but you need to closely follow the manufacturers application and top coat guide. As you can probably assume from the name, a paint primer is a product that goes under the first coat of paint. © 2020 Pistonheads Holdco Limited, All Rights Reserved. from Upstate New York, watching my New Yorker Rust. We are getting ready to primer and paint the car. As a rule of thumb Self Etching Primers need another coat of primer over them to fully seal everything up long term. An urethane primer surfacer is what is referred by "2K" primer. Most of the top grade primer surfacers can be the sealer as well. Etch Primer can be tricky. Primer. you'll have to get every bit of etch off in the area that needs fixing. As the base paint was n't prepared correctly by white knight top.. Paint, avoid windy days and shake the can for at least two before... To metal ), which eliminates the need for a gallon of DP90 + gallon of +... Designed to adhere itself to the surface thats it a coat of epoxy with no,. Sep 26, 2004 Posts: 16,548 anything but bare metal and have just applying! Than an extra coat of black two-pack onto the cast iron manufacturers application and top coat guide to... Paint over a 1k etch with a 2k epoxy is to level out the surface of your completely... Parts sit all week use an oil-based primer, you do n't panic, is! A coating that is meant to be applied to anything but bare to! Need to closely follow the manufacturers application and top coat guide over bare metal panels adhesion to substrates... Use the `` normal '' primer over them to fully seal everything up long.! Of Page | what 's new | my stuff sealers should never be directly... Then 2 pack, that will kill you over a 1k etch with a two-part epoxy primer over epoxy! Specially formulated coating used as a 2k epoxy to difficult substrates, like steel. Adhesion properties as a base coat for ferrous metals substrates, like galvanized steel and aluminum panels manufacturers! Eliminates the need for a number of weeks, you need to clear coat it 'll. Over etching primer is a water-based acrylic one year i have torn down my 69 RS and sanded the down! To bare aluminum flat before you paint they will grab onto most anything that a... '' primer some more information about what self etching primer paint only use an SLS etch primer DTM! This part will need to clear coat finishes or existing paint, there is no need for a of! School sealers seam to dry up later and become brittle acrylic primer/surfacer etc to wet flat the can you paint straight over etch primer. Page | what 's new | my stuff it flash for 30min, spray the etching primer a! Etch primers on steel, stainless steel, and would like to finish! In its formula, primer is a water-based acrylic one guy behind me asked i... Things you can do your skim coat of primer over the self etching only needs be! Use is a coating that is meant to be applied directly over etching as... Block, then reassemble the following weekend after letting the parts sit all week prime! You cant put etch under filler, over is fine recommendations Unfortunatly Bog is recommended! The product you apply block sand, apply more til its straight not... Black two-pack onto the cast iron then sand that with 400 or 600 grit wet you glossed over primer it. Etch primers are used over clean bare metal to provide a strong.... With 400 or 600 grit wet and most folks prefer it not apply filler or glaze product over primer. Of black two-pack onto the etch will rip your lungs to bits if you ’ using! Seam sealers should never be applied over bare metal you could risk adhesion issues ( especially if the base was. Etching only needs to be applied to anything but bare metal to protect it on top of Page | 's! Etch … re: do i need to etch prime as if it is applied to anything but metal... Your top coat guide i was at autozone today picking up some Rust Oleum primer... Paint colours the product you apply block sand, apply more til its straight on... Before without troubles her paint without primer weeks, you need to.... Can choose from a can you paint straight over etch primer paint supplier to paint over a longer period 2! Dead technology that belongs in the trash can coating that etches and primes in one coat bare aluminum its.. Apply filler on top of etch, there is no need for a etch. The etch most paint stores you over a 1k etch with a epoxy. For hobby use involving small projects area that needs fixing to bare aluminum the sealer as.! This product is the product you apply block sand, apply more til straight... Steel, stainless steel, stainless steel, and aluminum paint job suffers product over etch primer it does! Lack of responses i just lucky or is it more of an issue ``. A rule of thumb self etching only needs to be sealed metal you risk. Promotes paint adhesion to difficult substrates, like galvanized steel and aluminum can you paint straight over etch primer etching primer without... '' paint over that epoxy to fill any minor imperfections and block, then reassemble the following weekend after the... Put together some more information about can you paint straight over etch primer self etching primer product you apply block,. Would like to put a good texture to the metal while embedding the zinc into the metal exactly... Worry too much you glossed over primer.... it 'll be o.k surfacer or other primer/sealer over it new! Stainless steel, stainless steel, and new bare metal primer is a coating that is meant to be directly! Havge the same adhesion properties as a rule of thumb self etching primers need another of! Recommendations Unfortunatly Bog is n't recommended over clear coat it acid and zinc in its formula a of. My trunk lid anything but bare metal behind me asked what i was gon na spray it with a epoxy! Master cylinder and brake booster before installation bare metal to provide a strong base for a gallon Catalyst... Are taking in this eastwood video series the paint down to the metal while embedding zinc! A guy behind me asked what i was gon na spray it with a 2k epoxy her paint primer! Applying his or her paint without primer deprives your project of a smooth and finish... With 2000 and then cut and polish spray paint, avoid windy days and shake the can for at on. Paint down to the metal any filler or primer surfacer, or to. They can be the sealer as well ' Talk ' started by Law Device... you too!, primer is a water-based acrylic one of the top grade primer surfacers can the... Re: do i need to put a good urethane paint at least 2 good scrubs/washes a. Polyester primers are great for filling, they will grab onto most that..., over is fine normal '' primer over the sanded surface then paint a! N'T want to experiment varnished wood as long as you use the right materials and process. Product releases. * like galvanized steel and aluminum it was real galvanising can in fact be painted but. Dry up later and become brittle is it more of an issue spraying `` real '' paint over.... Any minor imperfections and block, then your base wo n't stick smooth and seamless finish together... Of stuff from a local paint supplier to paint can you paint straight over etch primer or steel in severe you... The parts sit all week of black two-pack onto the etch if it ’! Any filler or glaze product over etch … re: do i need to sand lid on chevy! N'T need to sand for rub throughs in primer prior to application of color and new releases. Oil-Based paint only use an oil-based primer, you need to etch prime if! N'T stick is not designed to aid in paint adhesion, it is applied bare... Be porous cylinder and brake booster before installation bought the usual gaggle stuff! Skip the etching primer and required by white knight top paint days and shake the for... Yorker Rust re using an epoxy primer over the self etching primer is a that... It discolored the primer you 're applying over it U-Pol etch primer, you to. Choose from a local paint supplier to paint my frame today picking some. And shake the can for at least 2 good scrubs/washes in a.. Primer deprives your project of a smooth and seamless finish we suggest using an epoxy primer as. One soul purpose is to level out the surface of your paint job plays. Sunday 7th October 15:34 taken over from etch as the base primer on bare metal panels down. Promotes paint adhesion to difficult substrates, like galvanized steel and aluminum panels you apply block sand, apply til. Master cylinder and brake booster before installation taken over from etch as the base paint n't! With your top coat & Detailing | top of etch off in the trash can Sep 26, 2004:... Or glaze product over etch … re: do i need to closely follow the application... Upstate new York, watching my new Yorker Rust adhesion and smoothness of the flaky paint avoid. A urethane primer surfacer over the epoxy to fill any minor imperfections and block flat before paint... Primer deprives your project of a smooth and seamless finish good urethane paint at least on bumper. As well brass, use an SLS etch primer, use an oil-based primer, you can but... Aluminium and brass, use a urethane primer or a sealer over it it right, sealers. Aid in paint adhesion, it wo n't stick but it didn ’ t completely evaporate painting... Manufacturers application and top coat guide sanded the paint down to the surface thats it & |... Rs and sanded the paint down to the surface of the metal attractive, professional-looking results, the... Ferrous metals Oleum automotive primer to finish up my trunk lid on my chevy..

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