How to block sand epoxy primer CRE PPG Epoxy Primer. These conditions make a lot of people go for primer directly instead of sealer. In this video I will go over a few do's and don'ts when block sanding. Oct 4, 2024 · Some of these time lapses are sped up 16x, so you can imagine how long some of this took me! I know it isn't the most interesting of videos, but we are in the last step before finally getting Apr 20, 2022 · If you must sand the epoxy primer, we would recommend wet sanding it since this will be much easier. Jul 11, 2023 · The #1 site on the Internet to discuss and learn about autobody and paint. Dry/wet sanding tips and tricks I want to share along with the progress on the mustang!!! Happy holidays!! Let’s get this baby ready for basecoat!!! #drysand #wetsanding #primer #bodywork # Jun 27, 2023 · Epoxy only is a great method, one thing I would suggest though is to change colors at different sessions, it works great as a reverse guide coat. If you decide to sand epoxy primer before painting, it is crucial to follow the correct steps to achieve optimal results. It works like a guide coat with the low spots remaining shiny. This direct-to-metal primer is specifically ideal for use after sanding or media blasting projects due to its filling qualities. Any thoughts on what I can use on top of the dtm to block sand? The dtm sands ok but not great and really clogs the paper. You could apply 2-3 coats of epoxy in place of the 2k primer then sand with 400 or 600. It talks about the proper tools in sanding body filler to get a perfectly smooth and flawless surface. Sanding can be awkward and messy, but it doesn't have to be. View products Block Sanding Primer the EASY way - DIY tutorial PHARRAWAY 162K subscribers 526 2K high build primer sanding paint preparation wet and dry blocking, flatting Tips and Tricks #22 Trev's Blog 87. A well-sanded surface ensures that the primer and subsequent layers of paint adhere correctly, giving you a flawless, durable finish. Dec 25, 2016 · The #1 site on the Internet to discuss and learn about autobody and paint. Jun 20, 2022 · Epoxy primer is one of the most versatile types of paint. Plan to use reduced SPI epoxy as a sealer per Tech Manual. I just apply that while the epoxy is early in it's recoat window. The main difficulty when sanding resin lies in the hardness of the surface. In my mind there are 3 options, I’d like to know which one is best: Re-spray epoxy primer (mixed as primer) over Jan 26, 2022 · Primer sealer is best left alone. If you want to learn how to paint your own car, this is the place! Jan 25, 2020 · How Easy Is It to Sand Epoxy Resin? When it comes to sanding epoxy resin, there are a few things that you should be aware of. Two coats of nice shiny epoxy at this point will give you an idea of what you have, and what the next step may need to be Feb 3, 2022 · An undercoat or primer is literally the base for paint, so you should be able to paint on a dried primer or undercoat. It smooths rough imperfections, aids in damage repair, and refines resin work. Jun 8, 2012 · I am up against a close deadline for completing my "H". That said, a lot of automotive epoxy primers sand about like concrete and don't have much build thickness. In this video we are going to walk you through the methods and tricks we use at Sylvester's Customs to achive that show car mirror Oct 3, 2023 · Yes, you can sand epoxy primer. Kevin shows you how to get panels laser-straight using Eastwood High Build Polyester Primer-Surfacer, Guide Coat and Dura-Block and Soft Sanders. Gather the necessary tools: To begin sanding epoxy primer, gather the following tools: Sandpaper: Select a suitable grit depending on the condition of the primer. If you want to learn how to paint your own car, this is the place! Feb 2, 2022 · A couple of questions I have are: 1. Block sanding your primer to a mirror finish has its challenges. Use a sanding block. After curing, apply a high-build primer, block sand it, and then finish with a urethane primer. Wet sanding epoxy removes amine blush, reduces clogging of the sandpaper, and reduces dust and exposure to partially cured epoxy. Jul 27, 2009 · The #1 site on the Internet to discuss and learn about autobody and paint. Novice mistake is to apply several rounds of high build primer and not really sand it enough in between. I'm not looking for perfection but I want it to look. It dried to a dark grey and when I cut it, it was light grey and was like a built in guide coat. Bare metal 80 grit on a DA before epoxy. if it hasn't cured, but you watch all the shows on tv and it's nonstop spraying till it's done " to meet the high drama Dec 10, 2021 · The next day you can lightly block sand the panels with 150 grit. Epoxy primer can be sanded to achieve a smooth surface for further painting or finishing. Jul 1, 2019 · More than a week past, sand filler, some block sanding and 180 with the DA since more than a week past. Second coat went on Oct 3, 2023 · Step 11: Priming and Painting Following successful bodywork, proceed with epoxy priming the entire surface. Nick now begins the task of blocking out the body. If you want to learn how to paint your own car, this is the place! Apr 11, 2023 · Have 4 layers of SPI epoxy primer down and ready to start blocking. Feb 12, 2022 · Epoxy Primer is a Primer Sealer. If you want to learn how to paint your own car, this is the place! Dec 2, 2016 · Hey everyone, I just finished block sanding the 2k high build primer on my truck at 120 grit. Nov 5, 2016 · My routine. DIY tips on how to block sand a car that has been repaired and sprayed with 2K high build primer surfacer. After body filler is the step of applying sealer. Here is a step-by-step guide to help you sand epoxy primer effectively: 1. Do I need to use 180g with a guide coat to block before applying the next 2 coats of epoxy? Just lightly sand with a hard block? Can I use a soft block with guide coat? 2. The basics of using automotive primers, acid etch primer, epoxy primer, and urethane high build primer explained, as well as basic prep work, block sanding a Apr 19, 2017 · The #1 site on the Internet to discuss and learn about autobody and paint. I mix the primer and spray with the Harbor Freight Black Widow gun. At this point, I think I have enough epoxy (older than the 7 day recoat window) on Sep 28, 2023 · If you’re prepping a surface for painting, you’ve probably wondered how to sand before primer effectively. No need to sand the low spots prior to filler if within the 7 day recoat window. If you want to learn how to paint your own car, this is the place! Jun 5, 2025 · What grit do I use to block sand after primer? If you want to prep polyester primer in order to prime over it with another material, start block sanding with 80 to break it open and roughly knock the panel down flat and then do the majority of your blocking with 180 grit and finish with either 180 or 220 grit on a DA sander. Hand sanding with a flexible foam block. I like to start with a coarse grit and sand (using a Feb 18, 2021 · Lets discuss which grit sandpaper to use for block sanding. This will reveal the low spots and then you can apply your filler and block sand as necessary. However, in block sanding, I did see a few very minor low spots that I want to use Upol glaze putty on. If you want to learn how to paint your own car, this is the place! In this episode I demonstrate and discuss how to block primer. I'll talk about what to loo Jun 14, 2014 · First time user of SPI epoxy primer. Jul 8, 2022 · In this post, we’ll cover everything from how long epoxy primer takes to dry before sanding, what’s the best way to prepare it for painting, and how long after applying epoxy primer can I paint over it? What is the best way to sand epoxy primer? Use fine grit sandpaper—120-150 grit is best. FREE access to training at htt You need to continually wet the surface generously as you sand, as you want the sandpaper to stay clean free of excess primer you remove with each stroke. Quick context: I stripped car to bare metal, prepped, sprayed epoxy primer 2 coats over all pieces. This guide offers insights on how to sand resin effectively for top-notch results. If you want to learn how to paint your own car, this is the place! Jan 14, 2011 · I have spent HOURS block-sanding down the epoxy primer to get it smooth again. Oct 25, 2023 · I did. May 17, 2004 · I like to dry block the first round of primer, and wet sand the second when I'm real close. Block sanding the epoxy primer to find The imperfections before doing the filler work . A coarser grit (around 80-120) is Oct 27, 2011 · The #1 site on the Internet to discuss and learn about autobody and paint. Feb 17, 2014 · Wet sanding epoxy primer is usually the best way to prep it because epoxy has a tendency to clog paper when sanded dry. Epoxy has a bad reputation for not being very Oct 17, 2019 · If laying epoxy down for the initial foundation I shoot two coats mixed with no reducer. Aug 4, 2010 · The #1 site on the Internet to discuss and learn about autobody and paint. Step-by-Step Automotive Painting Guide This resource guide includes the steps involved and the supplies you need to Do the Job Right®. May 21, 2012 · I tried to dry block today with 180 but the paper kept clogging. You could “finish” prep it in order to paint directly over it or you could treat it like body filler and simply block sand it flat and then prime over it with another material. But do you need to sand before painting? Read on to find out more about sanding your primer, including how long after primer application you can start sanding and what grit to use. Feb 12, 2009 · The #1 site on the Internet to discuss and learn about autobody and paint. You only need to sand between coats if you spray outside of the drying window. Then I would change to grey, when you are sanding it and see black you know you need to stop at this Mar 31, 2024 · What do ya'll suggest for proper body work steps. First round of sanding after applying a high build surfacer I like to use 150-180 grit. May 9, 2014 · Stage #2 - sanding down the 2K primer before I apply a final thin coat of epoxy primer (sealer coat) prior to spraying the base coat. I sanded through to bare metal in a few spots. Do you block and sand epoxy primer? Whitetail Collision and 3 others 󰍸 4 󰤦 16 󰤧 Blasted By Prince 󱢏 Epoxy then high build primer then start Mar 5, 2021 · In this video, I prep the front sheet metal for 2K high build primer from PPG. Tools, materials and Lakeside Merch is listed below Jan 20, 2025 · Is a primer required o be applied over the block sanded epoxy before base coat is applied? If yes what primer should be used if needed? which one is best? If primer isn't required can base coat be applied at any time after block sanding? If bock sanding takes longer than 14 days must another epoxy layer be added before primer or base? May 13, 2019 · No i would spray your sealer coat of epoxy day before you base. Either more G2, 2K, or full strength epoxy depending on the amount of fill you need. Wet sand the primer, apply a sealer and use your chosen base coat or single-stage paint. Feb 16, 2015 · How to get Perfect Body Panels with Block Sanding: With Body Work Expert Kevin Tetz Ever wonder what it is that separates the mirror smooth bodies of show cars from the body filler fender bender repair you did in your driveway? Often times it all comes down to the important step between the first coat of primer and the first coat of paint, called blocking. I don't want to do more sanding May 15, 2014 · Epoxy primer serves a wide range of automotive needs, providing quality resistance to corrosion, fast build, exceptional color holdout and strong adhesion to bare metal substrates. I assumed that my high build primer coats would cover these, but in reading the tech sheet, I find that it suggests going to 320 before shooting the primer. Let it set for 30 minutes (per Barry). But I also read somewhere that there can be particals of sand stuck in the metal. Plus some Apr 25, 2011 · The #1 site on the Internet to discuss and learn about autobody and paint. If applying Primer-Sealer over the Primer Surfacer, final sand the Primer Surfacer with the recommended grade paper according to the Primer-Sealer Product Data Sheet. I'm getting my truck ready for repaint. So, you can spray high build primer onto epoxy directly but be sure to follow its correct application method. I personally like to use a spray bottle filled with soapy water to allow my block to not get clogged up with excess primer. Here we explain when to use epoxy primer and why? Aug 31, 2015 · So I have my poly over spi epoxy and I'm block sanding. Do I block sand the Want a flawless paint job? It all starts with proper primer prep. But Aug 31, 2015 · So I have my poly over spi epoxy and I'm block sanding. This will allow you to block sand the primer and still leave enough film build to protect the feather edge from solvent attack. Whether you’re a DIY enthusiast or a novice in home improvement, this article will guide you through each step to achieve a flawless finish. Nov 14, 2020 · Once you hit filler, there will need to be something sprayed over the panel before sealer. Mar 4, 2014 · I do my filler work over the epoxy and then seal with more epoxy before going to the build primer. Once I cut the skin off of it I guide coated it and begin blocking with 120 grit Jan 31, 2024 · There can be a lot of confusion around primers when it comes to painting a vehicle. If you want to learn how to paint your own car, this is the place! Sep 29, 2024 · The #1 site on the Internet to discuss and learn about autobody and paint. In this video we are demonstrating how to block sand primer. Without proper blocking, no matter Apr 8, 2015 · In this how-to session Kevin goes over the various Eastwood Contour polyester body fillers and surfacers, as well as other Eastwood products. Primer surfacer works good if you are going to get to the car right away and get it painted right away so it is all sealed up. I also sand through to bare metal on a couple of small spots. The key to block sanding is to change the sandpaper often and do not press so hard on the block you flex the panel. Did my filler work next. I also wipe down the area with wax and grease remover and check for waves against a light. May 26, 2013 · I decided to use 2k primer over the epoxy because it takes too long to dry and does not build very thick. If you want to learn how to paint your own car, this is the place! In this article, we will discuss the ideal grit sandpaper for priming a car before painting, providing you with valuable insights to achieve professional results. If you are pretty confident the panels are straight then shoot your 2k primer coats. Jul 21, 2014 · I use SPI epoxy. You don’t need to sand epoxy to cover it with a primer. You would sand the same way as 2K Urethane Primer—400 to 600 grit wet. When doing body work there is a product called Primer Surfacer that sands easy and is used for leveling and filling imperfections and sand scratches over the bondo work. Sprayed a couple/3 coats of high build primer on top of that. Epoxy resin can be tricky and a little risky to sand, but with the right tips and tricks, you will be able to sand epoxy safely. I usually block my first round of primer with 180 grit, reprime, and then block with 320. Alternatively, if you want to sand immediately after applying the undercoat, you should use a primer. Some may spray a polyester primer over epoxy and do the smoothing with that. Make sure the surface prep you apply after sanding or scuffing is completely dry. Usually when you are hitting different materials, that is a sign it is not quite "there" yet. Jan 3, 2023 · The #1 site on the Internet to discuss and learn about autobody and paint. . Once body work is done, scuff everything with 180, clean and shoot another coat of epoxy. I was going to re-spray them with Basic guide to Bodywork, block sanding, priming, and primers in the restoration world! How to Repair Rust on Your Car Without Welding (No Special Tools Needed) Jul 15, 2009 · I've just finished my filler work and have a car pretty much covered in 80 grit sanding scratches. I would use Evercoat G2 polyester 2K primer and sand with 320 dry followed by 320 wet and 400 wet. So I was just going to hit everything with the sander but I was wondering what is best Dec 1, 2015 · This blog is all about how to correctly do auto sanding on bodywork repairs. With their small size and intricate designs, coasters can be tricky to work with when it comes time for finishing touches like smoothing out rough edges or removing bubbles from the surface. Following the advice here, at this point I’d be looking at a final block out and scuff of the regular build, and then seal with reduced epoxy and spray the base. Or some sort of variation? What about applying marglass (heavy fiberglass stranded body filler) onto the seams of patch panels and then regular filler and self etching primer? I'm new to body Aug 1, 2006 · What grit should I use on the bare metal before I epoxy primer ? I have been told to primer right over the sand blasted spots . Dry sanding 2k primer surfacer with a d a sander. Apply filler to the areas that need it feathering into the surrounding epoxy. If you want to learn how to paint your own car, this is the place! Oct 28, 2023 · The #1 site on the Internet to discuss and learn about autobody and paint. How long do I have to wait to apply body filler after spraying epoxy primer? tech sheet says 24 hours before sanding but I would like to rush that a bit if I could. If you want to learn how to paint your own car, this is the place! Dec 23, 2023 · The #1 site on the Internet to discuss and learn about autobody and paint. Regardless of whether you’ve wet or dry sanded it’s always a good idea to go over your work with a gray or red scuff pad. After a full cure (4 days), sand the Primer with an Eastwood #19857 Dura-Block Sanding Board (Included with Kits #23122ZP & 23123ZP) with P320 grit, then finally P400 grit Abrasive Paper, using the previously described 45° crisscrossing sanding pattern technique, again using Guide Coat. Oct 14, 2017 · The #1 site on the Internet to discuss and learn about autobody and paint. Past 14 Days - Scuff or sand 180-320 & recoat with epoxy. It could probably use another round of 2k high build and blocking but I think its satisfactorily straight. In this video, I’ll show you how to mix, apply, and block sand your primer like a pro so your paint lays down smooth and clean. I also demonstrate block sanding the hood using Jan 11, 2025 · Sanding epoxy resin is the transformative art of refining surfaces, essential for achieving flawless results in various projects. From there the build primer gets guide coated and block sanded to remove the guide coat. Coarser grits cut faster and block straighter than finer grits especially if you are a novice. Any small imperfections will usually come out and if not shoot some more 2k primer and repeat the guide coat block sanding. Is it necessary to sand to this extent or is scuffing good enough? I know it leaves an orange peel look, but high build primer Learn how to sand epoxy primer effectively with a review of Summit Racing DTM Epoxy Primer in this informative video. Then apply your favorite primer and sand it until it is ready for paint. Self etching primer, then filler, then epoxy primer. Learn more Clearly explains how to apply a final coat of urethane primer and methods of finish sanding that light coat of primer to prepare for BC/CC or single stage automotive paint. Jul 30, 2022 · Final Sanding Grits Bare steel for epoxy P80 Epoxy for filler or poly primer: 7-14 days Scuff or sand 180-320. Jul 8, 2022 · If perfection is your goal, I would lightly dry sand the epoxy with 320. Here, our own favored primer-surfacer is “regular-build” urethane. If you want to learn how to paint your own car, this is the place! Evercoat Super Build Primer - How To Block Sand THICK Filller Primer #howto #diy #car #painting #primer My Friend Pete shows us in detail how to sand Evercoat Super Build Primer. Prepping primer like our Contour Polyester Primer could go one of two ways. Also, any thoughts on what I can use as a spot putty or glaze over the dtm or sanding primer?. Oct 4, 2024 · Prepping All the Primered Panels! (How to Block Sand Epoxy Primer) Midnight Oil Motorsports 76 subscribers Subscribed Jan 12, 2025 · The #1 site on the Internet to discuss and learn about autobody and paint. If you want to learn how to paint your own car, this is the place! Jan 8, 2013 · Member from Louisiana I normally spray 3 coats of primer at a time, but it all depends on how thick you spray it as to how many coats you want to put. Two main techniques, dry and wet sanding, are employed, each offering distinct advantages of resin sanding. Once I cut the skin off of it I guide coated it and begin blocking with 120 grit The third is there may not be enough primer covering the "bust through" feather edge, always apply primer at least 4 to 6 inches past the feather edge. I started off my using my da on the large areas with 80 grit. It's used to protect wood, metal, and concrete surfaces. From there I use reduced epoxy for sealer. Before spraying epoxy over bare metal, the metal was sanded with 80 grit. I decided against using the epoxy primer as a sealer, and went with Omni's MP213 sealer instead. The high build primer can go where ever you want it to go. Should I start wet sanding? Could it be the primer that I used for a guide coat (Rustoleum)? Is jumping from 80 to 180 too much? Don't know if you need to sand epoxy primer before painting? We'll tell you what the rules of sanding the primer are. First coat went on a little too heavy (operator error). Wetsand with 600 and go to base. If I go past the window, I scuff the epoxy with 400 or maroon scotchbrite and apply another coat of epoxy and follow up with the high-build the next day. What grit will I want to start with and end with before moving on to applying the sealer coat? Oct 3, 2024 · Its difficult to sand out the scratches left behind from block sanding, so most would apply another lesser building but easier sanding primer like the ones noted above. Sanding primer The OptiFlow Ultimate Kit has EVERYTHING you need to go from bare metal to primer and ready for basecoat/color! This Ultimate Kit includes everything from the Complete Epoxy Kit plus Urethane Primer. Blocked sanded the high build with 150 grit. Sep 3, 2010 · The #1 site on the Internet to discuss and learn about autobody and paint. Applied skim coat of body filler over epoxy primer. I don't sand epoxy at all before spraying high-build or applying filler. I plan to spray 2/3 more coats high build primer then sand with 400. Johnny CarsandGuitars 393 subscribers Subscribe Now that you know how to sand epoxy resin, let’s talk about putting these skills into practice with a specific project: sanding down epoxy coasters. My opinion on sanding epoxy primer. If you want to learn how to paint your own car, this is the place! Feb 9, 2012 · For me its generally epoxy primer (I like black), 2 coats of G2, block with 80 till start seeing epoxy, spray 2 more coats of G2, block with 180 till seeing epoxy, then 3 coats of 2k primer, guide coat, block with 400. This is where I am. Leave it in primer for now, or you will need to sand epoxy and recoat before base I show how to touch up spots that the blocking miss, fine tune body lines and gaps, then go over the process of adding epoxy over some bare metal high spots and adding a 2K primer to the car. He talks about which to use where, how much to use, how to apply it, how to shape and sand it, and how to get it ready for primer and paint. TLDR: Do I need to shoot epoxy primer perfectly to be able to topcoat on top of it while wet? If I do wait for it to dry, and then sand with 400 or 600, should I reshoot epoxy primer and then topcoat wet, or simply move onto the topcoat after the 400-600 sanded dry epoxy primer? Feb 15, 2007 · What grit should I block sand the bodyfiller, before putting on the 2K high build? All the advise is fantastic when you hit metal or the oem primer stop sanding, when it comes to block sanding go slow and easy let the sand pape do the work, keep a clean whisk brush or air compressor close to blow or brush sand paper clean. It’s also a good primer […] Mar 22, 2022 · In this blog post, we'll explain how to prepare your car for primer and offer some tips on what grit sandpaper to use, what type of primer to use, and more. So after a couple of weeks with the re-spray of epoxy, I got SPI's Turbo 2K primer. People use the Epoxy primer because it is tough and is a good base Jan 25, 2020 · How Easy Is It to Sand Epoxy Resin? When it comes to sanding epoxy resin, there are a few things that you should be aware of. Keep in mind, all the blocking is being done along the way. Jan 23, 2005 · What kind of flash or drying time is acceptable between the primer sealer and paint? Reading threads below, it sounds like you can run into trouble with shrinkage etc. Epoxy primer can also be used as a basecoat for many different types of paints. 2 more coats epoxy. If it's in the way you can just sand it back. In your case I'd scuff it all over with like a 180/240 pad then shoot one more sealer coat of epoxy, flash it off, then 3 coats of primer/surfacer. After 24 hours I will lightly block sand with 150 grit just to reveal the low spots. I am talking about the kind of sandpaper specifically made to block sand primer with. If you want to learn how to paint your own car, this is the place! Jan 11, 2021 · I am using epoxy as my high build primer over poly primer. Let's get started! More sanding! Block sanding PPG CRE321 high build epoxy primer on Coupe Deville Hickey's Kustom Resto 855 subscribers Subscribe Sep 17, 2008 · The #1 site on the Internet to discuss and learn about autobody and paint. Learn how to sand your epoxy resin projects with our latest beginner's guide. Kevin New to painting. You're going to drive yourself crazy trying to flat that epoxy. I waited the 24 hrs to cure and this stuff is a bitch to block sand mixed Or do paints cover up any small variations? Thank you. How I am going to apply it in the future. If you want to learn how to paint your own car, this is the place! how to block sanding 2k high build primer with guide coat for that Lazer straight body before paint BPB Restorations 4. I will seal with reduced dtm and then lacquer. Epoxy for 2K primer: 8 to 14 days Scuff or sand 180-320, 180 preferred. Sep 19, 2008 · Paint/Body - Sanded thru primer, what to do next - This is my first try at painting and so far things are going pretty well. May 17, 2014 · Or after the epoxy has set but still within the recoat window or by sanding it prior to application. Gives a detailed, clear explanation on how to block sand primer surfacer or high build primer so that your body panels turn out perfectly straight with clean Jul 15, 2022 · I’m painting my hood. 2K high build primer sanding paint preparation wet and dry blocking, flatting Tips and Tricks #22 Trev's Blog 87. I mixed one part primer w/equal part activator. My question is, after applying primer and while block sanding and I sand down to bare metal ( this has happened a few timers mostly on the edges) do I apply more primer or will it need epoxy on the exposed metal for corrosion protection? Learning how to prep your primed surface for paint. Sep 7, 2021 · I spray epoxy on bare metal- then do bondo work- spray epoxy over all body work - 2k/polyester- epoxy again- sand to 400-600- spray base . 2K primer for additional coats of 2k: 180, maximum of 24 hours prior to next coat of 2K. What final grit is recommended PRIOR to sealer then paint? Nov 30, 2023 · Today we will be doing some block sanding on Ruby's trunk lid to determine if the Epoxy we sprayed last week will sand well or clogs up the sandpaper. If you want to learn how to paint your own car, this is the place! Jul 1, 2014 · I am going to spray Gcp global dtm epoxy primer first. Over steel, polyester filler, and epoxy primer we generally go with three wet coats of reduced primer-surfacer for the initial application. So what I am wondering is what I should do to Aug 24, 2010 · All my bolt on sheet metal I've sanded the epoxy primer to a pretty smooth finish before High build primer and paint. The Captain's side of the 1975 Firebird gets blocked out and primed. After block sanding, we can final sand and get ready for paint. Today we're going to demonstrate how to block sand high build primer the easy way by using a guide coat to show exactly where the highs and lows are IF YOU Aug 19, 2019 · The coarser grits, like 80, are used on a long block to get your panels straight and wave free. 7K subscribers Subscribe Jul 12, 2020 · The #1 site on the Internet to discuss and learn about autobody and paint. Waited 30 minutes, adjusted my gun (less air pressure and decreased the fluid amount). I have the body in epoxy now and am sanding it. Before spraying epoxy over other primer, it was sanded with 180 or coarser. If your goal is a show car straight finish then the best way to finish sand the final coat of primer is wet sanding by hand with a guide coat. Feb 28, 2024 · Partly for the purpose of illustration, here’s what happens whenever we put a new sanding block into service. Jun 11, 2020 · After having done a few cars with the epoxy, slicksand, turbo, epoxy seal, basecoat, clearcoat process, I would say first epoxy (black is best IMO) over bare metal or fiberglass, let that cure a few days, then block (150) it to see where your low/high spots are judging by the scratches left behind. I sprayed the epoxy sealer then a couple of coats of 2K primer. Two coats of nice shiny epoxy at this point will give you an idea of what you have, and what the next step may need to be Oct 2, 2023 · If you’re looking for a comprehensive guide on how to sand between coats of primer, you’ve come to the right place. After applying the 2 coats of epoxy then sand starting with 320g through to 600g? or 800g? Would also use a guide coat. Example, apply black epoxy over bare metal, do all body work, re-apply black epoxy primer, I always sand this stage as it helps remove imperfections. I sprayed the doors, boot lid and bonnet and the 2K primer is really nice. 2–3 coats of regular build primer. First coat was epoxy. Jun 23, 2014 · The #1 site on the Internet to discuss and learn about autobody and paint. Now block sanding with guide coat and some spots are high and show bare metal. Taking 320 grit sand paper to the test. If you want to learn how to paint your own car, this is the place! Dec 29, 2023 · Block Sanding - How to do corners?? Paint & Bodywork Dec 14, 2020 · The epoxy primer needs to be thoroughly scuffed or sanded prior to applying 2k primer. Feb 3, 2022 · An undercoat or primer is literally the base for paint, so you should be able to paint on a dried primer or undercoat. 73K subscribers Subscribe If any bare metal is exposed, an Etch Primer, chemical metal treatment, or Epoxy Primer is recommended to be applied before additional Primer Surfacer or Primer-Sealer. I'll show you how to get your body panel straight like factory. Dry sanding epoxy will cause the sandpaper to be clogged within a short duration. You can wet sand over primer and in between coats so that the final finish can look flawless. Jan 6, 2010 · i sprayed the pannels with the transtar 2K Epoxy Primer Sealer System part # 6131. Jan 8, 2013 · Epoxy primers do not contain isocyanates, but you still need to use a respirator to spray them. If you want to learn how to paint your own car, this is the place! Once a few things were adjusted while still in bare metal - the M40C's body was shot with highbuild polyester primer. While blocking it down, I when thru the primer & sealer to the glass and filler in some spots.