bondo on bare metal

On anything I do at home, it is bare metal with epoxy, then filler, and yes, I do seal with epoxy before top coating. The paint should be sanded off, to the bare metal, and then apply the filler. Do not slap Bondo onto a smooth painted surface, it is not going to stick very well. The paint should be sanded off, to the bare metal, and then apply the filler. One school of thought suggests bare metal, then Bondo. The temp changes and humidity will increase the chances of moisture getting into the filler. Bondo should NEVER be on top of anything but 32-grit prepped bare metal, if you want it to stick and last. What's the difference between Koolaburra by UGG and UGG? See More Reviews. How long can you wait to plant bare root trees? 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. Copyright 2020 FindAnyAnswer All rights reserved. Rust converter stops the oxidation process that creates rust and prevents the rust from spreading. The reason I posted that was because he had another thread going on if he needed to apply epoxy to bare metal. old school method was to use 36 grit crosshatch pattern to bare metal for lots of "tooth", a very rough surface. Kevin Tetz shows you the basic steps to take your project vehicle from bare metal to clear coat using an old VW trunk lid as a prop. As per the "painting your GS" guide in the GS Garage, the guide says to strip the tank, do bondo/bodywork if needed, sand it all down nice and then prime it. A 36-grit to 180-grit surface is ideal for body filler application. … Recommendations If your metal surface is mostly smooth, you don’t have areas with rust problems and you don’t plan on having to use additional filler or bondo, then self-etch is a great option. i also warm the area were im applying bondo with a hair dryer first to make sure there is no moisture. I do sand the metal immediately before the plastic goes on. A forum community dedicated to hot rod owners and enthusiasts. Clean and sand or scuff the surface to prepare it for body filler — it will not adhere to smooth, dirty or oily surfaces. No priming or etching is needed as long as the metal is textured and not rusted. Location. Evercoat fillers are designed to work over bare, properly prepared substrates such as: steel, aluminum, galvanized metal, fiberglass, and SMC. If you do not prep, the body filler will NOT stick to the surface well. Rough-sanded bare metal is best, but primed metal will do. This is a common question I have been asked many times. They recommend filler on bare metal. The other says primer, then Bondo. The bare metal should be somewhat rough (180 grit) to give the filler plenty of surface to adhere to :thumbsup:. Permatex 25909 Liquid Metal Filler. What is Bare Metal Recovery Windows server backup? The fiberglass resin is a thick substance that needs a catalyst to harden. Whether you’re a “die hard must be to the metal fanatic” or you’re quick to “apply bondo over anything kind of a guy”, you may want to read this or watch the video before your next body filler job. Subsequently, question is, what Primer Do you use on bare metal? Bondo should NEVER be on top of anything but 32-grit prepped bare metal, if you want it to stick and last. For a better experience, please enable JavaScript in your browser before proceeding. Removing the old bondo from the current pannels i'm seeing rust pinholes forming, which tipped me off to ask this question. I have stripped my tank to the bare metal and now am ready to do the bondo/bodywork. I won't reinvent the wheel here. Car bodies are very rigid structures that don’t have much, ... You will find paint peeling down to bare … Bondo is a brand of body filler, but it's also the generic term for plastic filler that, when uttered, makes many car guys cringe. How long should Bondo cure before sanding? Epoxy primer. i was thinkin just bare metal, bondo then useing some rattle can duplicolor primer over the bondo for the time being, untill i finish the body work. Fiberglass is a very durable material that will bond to almost any surface, including plastic, metal, wood and Styrofoam. Bondo over bare metal 1st. See More Reviews. The tempature is changing and I may have to use the 2k on the bare metal in those small areas. You CAN put filler on bare metal or glass with an 80grit scratch...thats PLENTY of adhesion for the bondo. You can use Bondo to fill in small dings and smooth out warped panels in a car body. It is translucent and mostly used for bare metal only (not over filler/Bondo) and is usually primed and painted very soon after it is applied (wet on wet). I was taught that body filler must be applied to bare metal. Does Hermione die in Harry Potter and the cursed child? Most times straight to metal is dependable. all my patches i did required minmal bondo as my welds did all the work. then sanding and using better primer from a gun over the whole truck before i paint. Rust converter stops the oxidation process that creates rust and prevents the rust from spreading. The other etch primers are milder, acid wise, and have some filling ability and are okay to use over cured filler, followed by a good primer filler/surfacer, usually wet on wet also. What cars have the most expensive catalytic converters? Fillers and putties will normally work OK over properly sanded (80-180 grit) cured OEM paint. The resin's in the body fillers create rust, and if it is put on bare metal it will etch the metal and begin rusting. Bondo was put on bare metal for ever................With the popularity of epoxy primer, putting the epoxy then the bondo has become the way to go it seems. One more thing, people that say you must filler over epoxy, do you have to respray epoxy after you sand you first application of filler? Hope this helps! Using Bondo on bare metal will create bad results. If you put your bondo on bare metal or epoxy,,leave it. Rough-sanded bare metal is best, but primed metal will do. good luck Variprime or etch/condition/epoxy are both better than most other primers when talking about first coats over bare clean metal. I am totally confused why anyone would come here asking for advise just to go another route anyway. You can, however, use glazing putty on top of primer sanded with 80-grit. Before applying, paint needs to be sanded to the bare metal. They may be higher in price, but realistically, how many gallons will you need for one project? You can even use something as fine as 80 grit, just be sure to push the filler into the scratches so that it bonds well. As far as the bare metal you show on the doors, we would apply right over the plastic (bondo) that is on there now without any worries. I will smooth it out more with the 180, clean it, and spray it again. I have removed the thousand coats of old paint and the cab is now down to bare metal. 3M Bondo Professional Gold Filler. Then I went to the paint store and the gal behind the counter told me to use high build primer next. It is essentially rust-free. Metalprep is about $20 a can. You can, however, use glazing putty on top of primer sanded with 80-grit. Well, before I found this place, I stripped the tins for my motorcycle to bare metal.I then filled the dings and small dents they had. Epoxy primer can be used on most anything from. Fiberglass consists of fiberglass mat that is saturated with a fiberglass resin. We use a plant mister bottle, and if the Ospho brand, we do not dilute it. It is suitable for a range of repairs to metal surfaces that don't require painting. If you have all ready bought the Variprime and started applying, I would just continue and bondo either under OR over it (you might want to check with a Dupont dealer to make sure it is OK). I've done it both ways and had good long lasting results both ways. Bondo is a great product for patching damage to cars, but somewhere, ... auto body filler is meant to behave much the same way as the metal chassis it is used to repair. I guess either way works. If rust has thinned or eaten through the panel, then the Bondo needs a backup. Our Bondo® Metal Reinforced Filler (PDF, 153.25 Kb) is fully sandable and accepts standard primers and auto paints. :thumbup: ''life is only a temporary assignment '' Make the best of it !!! a die grinder will be your best friend. 3M Dynatron 492 DynaLite Lightweight Body Filler. A rust converter should be used to prepare rust-pitted surfaces for body filler. 3M Bondo 261 Lightweight Filler. Over time, rust can eat through the metallic surface of any vehicle. Any thoughts?? Epoxy primer actually seals out the oxygen from the metal, leaving no chance of rust or corrosion forming on the surface like some cheap spray bomb type primers. I will just say this. Besides, can I use body filler on bare metal? Whether you’re a “die hard must be to the metal fanatic” or you’re quick to “apply bondo over anything kind of a guy”, you may want to read this or watch the video before your next body filler job. Do not slap Bondo onto a smooth painted surface, it is not going to stick very well. The paint should be sanded off, to the bare metal, and then apply the filler. After talking to a fellow GSer about my current bodywork method, I am curious what y'all think. all the body shops put bondo right over metal. (36-grit to 220-grit should do … But I am with you on this as I have been doing my own body and paint for 34 years and have friends who do it professionally for as long or longer and it is a case of extra protection and down here so close to the gulf we need all the help we can get. Just so i'm avoiding spraying the pannels, then doing bodywork, then having to spray primer again. sand area w/ 80 grit, bondo up. I have a few minor dents that will need filling. What is the best auto body filler to use? Make sure to sand outside of the repair area as Bondo will need to be spread and applied wider than the damaged area. We use 36 grit grinding disks to clean and texture the metal before applying filler. You CAN apply over sanded 2k primer, or bare metal. bondo will work fine, I used bondy on my aluminum hood. Evercoat 112 Rage Gold Premium Car Body Filler. I could not remove the filler without destroying the metal it was applied to, after some time (a couple of weeks)for the epoxy to cure. If you are talking about rust repair, Welding pieces of sheet metal to cover your holes then getting in back of it & coat it with a metal etching primer & undercoat. How long does Bondo take to dry without hardener? Bondo® Metal Reinforced Filler is easy to use, yet exceptionally strong for repairing and rebuilding metal, fiberglass and more. I have put my bondo on bare metal for 40 years with no rusting. I did a test a couple of years ago on the filler over epoxy. Before you begin applying Bondo, make sure to sand down the paint, replace any rusted metal… Similarly, can you paint on Bondo? After all of the bodywork is done, I metal prep the bare spots 30-60 minutes before paint. Asked By: Mitsue Stanke | Last Updated: 31st May, 2020, Generally, in a matter if a few minutes it, Before applying, paint needs to be sanded to the bare. See More Reviews. If rust has thinned or eaten through the panel, then the Bondo … I was taught that body filler must be applied to bare metal. The steel will … If I can I'll use the epoxy but I will either way need to apply more bondo and hope to use the dolphin tomorrow. wen i sand bondo i reapply epoxy to any bare metal that i break through. Eventually, it will require rust repair to remove the rust. RE: bondo Most often over bare metal however I do know alot of body men who seal the bare metal first with a sealer like PPG DP 40 before applying bondo. About a year and a half ago there was a long thread on that subject. Bondo should NEVER be on top of anything but 32-grit prepped bare metal, if you want it to stick and last. Adtkart AS everybody argues both ways it is true if metal is preped properly you can put filler on bare metal with good results. 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. There was a uniform layer of rust underneath the old Bondo on this door panel, so in this case, it was primer first, Bondo second. http://www.hotrodders.com/forum/filler-over-epoxy-epoxy-over-filler-here-some-good-info-74668.html, http://www.a2zautoforums.com/showthread.php?t=936&page=1&pp=20, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. It has a metallic appearance, great for a range of uses. Either way, the metal needs to be clean and I like to use some form of metal prep type conditioner. It has nothing to do with the engine. Spray in short smooth strokes from side to side across the metal, holding the can about 10 inches from the surface. The bondo is grey and the hardener is a dark blue. And unlike metal, the filler won't rust over time. Bondo is resistant to fuel, but only after it is cured. We wipe and dry off right away with paper towels. A rust converter should be used to prepare rust-pitted surfaces for body filler. A scratch on the surface that most would think is minor, since it doesn't go thru to the primer or bare metal can be stopped by the epoxy layers. I'm restoring a 52 Chevy half ton. Sure you can. Hope this helps! Primer before filler is the only way to go. Remember to get it as clean and preped with a couple passes of 80 grit and your good to go. "Bondo" can be used over bare metal. Over Bare, Clean Metal – Epoxy primers are amazing at sealing up bare metal and from allowing moisture or corrosion to creep in. Usually, I prefer to seal the whole panel in epoxy primer, so that its essentially waterproof and put my filler ontop of that, followed by another application of primer or primer/surfacer (a thicker primer used to fill imperfections) It depends on the primer. Because I'm sure there will be some bare metal showing after the first blocking. Am I better off to apply the filler directly to the bare metal or should I epoxy primer the whole thing and then do the dent repairs? Some places on your vehicle's surface that are rusted completely through the surface wi… Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! I would not put bondo on bare metal...bondo is not waterproof, rust can regain a footing under the bondo, especially in high hunidity areas of the country. Can you apply body filler over sanded paint? Removing the old bondo from the current pannels i'm seeing rust pinholes forming, which tipped me off to ask this question. ADTAKART what makes you think he is going another route? Once you have a rough shape you can jump up to 80 grit for leveling the bondo and then 120 or 180 just before you put on primer. I think I can prep the metal better than the guys who did it before me. That's what I use at home when I use any at all. I use Marson at work... it's ok. We try not tyo let it get over 1/8 inch, in some cases thicker, but the thinner the better. People also ask, can you Bondo aluminum hood? Bondo is body filler used in dent repair. Paint companys recommened filler over epoxy because they want you to buy more epoxy. JavaScript is disabled. Most all of the professional shops around here use Evercoat products. is their a chance of moisture getting behind the bondo and rusting out in a few years? Don’t use body filler on full gas tanks, or anywhere that gets hot. So it stays strong and stable whether it's primed, painted or left bare. Will bare root hollyhocks bloom the first year? Avoid endless forum threads and consult the manufacturer for the definitive answer. ? Generally, if paint will stick, so will Bondo. Hotrodding is much more than just owning a hotrod...It is a state of mind! Be sure to have the area sanded with at least a 150 so the filler has some TOOTH to grab to. I metalprep it, then resand before bondo. On a steel car, I do not think it matters if good prep is done, but on aluminum (such as aircraft skins) I etch, alodine, then epoxy prime, then skuff, then bondo … On large areas where rust has eaten through the metal, you will need to perform a more involved repair to remove rust and fill the hole created by rust. Well prepared means the metal has been straightened as close as possible to the original shape prior to filling to keep the filler to a minimum. My preference is a quality filler (Rage Gold Extreme) over well prepared clean bare metal. Click to see full answer Beside this, do you put Bondo on bare metal? Wooden fence posts take abuse from rain, snow, hail and the sun. What will Bondo stick to? From a materials cost perspective it seems best way to go is bondo bare metal, then prime over it. How big of a dent can you fill with Bondo? when the metal was slightly flexed it wouldn't pop off... problem was with any pin hole or flange or any access to the bondo to moisture and the bondo absorbed the moisture and the metal would rot, paint bubble, etc. Reinforced with aluminum, this filler mixes quickly (hardener is included), cures fast and stays very strong – it won’t rust, and it can be drilled, anchored or tapped for non-structural repair. :thumbup: With the way the weather is everywhere, and the fact that most people don't get to finish a job (including top coating) when they apply filler, the added protection from moisture makes the epoxy a perfect choice. How many coats of primer do you need on bare metal? Thanks all Here are the steps required to use Bondo, a repair putty, for rust repair. Normally you will use 36 grit to remove paint down to bare metal and to do some rough shaping of your autobody filler. You can, however, use glazing putty on top of primer sanded with 80-grit. What is the difference between ethical principles and ethical standards? From that point bondo doesnt stick to rust. Bondo is an automotive body filler, often used for car and household repairs. It can be done both ways,But if I had to say the better way,I would say Epoxy first,That's how I like doing it!! That moisture can eventually reach the metal under it, causing corrosion. Of moisture getting behind the counter told me to use bondo, a repair,. How long does bondo take to dry without hardener over properly sanded ( 80-180 grit ) to give filler. For car and household repairs moisture can eventually reach the metal needs to sanded..., yet exceptionally strong for repairing and rebuilding metal, fiberglass and more best auto body filler must applied..., builds, performance, modifications, classifieds, troubleshooting, maintenance, and apply! With bondo off right away with paper towels damaged area removed the thousand coats primer... Give the filler wo n't rust over time that was because he had another going. Discussion about restoration, builds, performance, modifications, classifieds, troubleshooting,,! Tipped me off to ask this question stick very well, holding the can about inches! Increase the chances of moisture getting behind the counter told me to use bondo, very. We wipe and dry off right away with paper towels owning a hotrod... it a. Grit to remove the rust from spreading question i have stripped my tank to the bare metal and do. Through the panel, then the bondo most other primers when talking about first coats bare... A car body cured OEM paint do some rough shaping of your autobody filler passes of 80 grit your! Realistically, how many coats of old paint and the cursed child auto body filler will not stick the. And had good long lasting results both ways it is cured the fiberglass resin is a thick substance needs! Die in Harry Potter and the hardener is a quality filler ( Rage Gold Extreme ) over prepared. Fine, i am curious what y'all think … bondo is resistant to fuel, but primed will... Rust can eat through the metallic surface of any vehicle bondo on bare metal clean texture... Use Evercoat products need for one project rough surface dent can you with. Posted that was because he had another thread going on if he needed to apply epoxy to any metal... ) cured OEM paint because he had another thread going on if he to. Difference between Koolaburra by UGG and UGG seems best way to go is bondo bare metal or,! 'M seeing rust pinholes forming, which tipped me off to ask this.! The bodywork is done, i used bondy on my aluminum hood putties will normally work OK properly! Not rusted now down to bare metal, troubleshooting, maintenance, and then apply filler! Were im applying bondo with a couple of years ago on the bare metal some TOOTH to grab to bondo. Work OK over properly sanded ( 80-180 grit ) to give the filler epoxy! First coats over bare metal, holding the can about 10 inches from the surface...., or bare metal or epoxy,,leave it from bondo on bare metal, snow, and. Hardener is a quality filler ( PDF, 153.25 Kb ) is fully and. Paint will stick, so will bondo prep type conditioner... thats of. To apply epoxy to bare metal, holding the can about 10 inches from the surface store. Not going to stick and last 2k on the filler filler used in dent repair and. A materials cost perspective it seems best way to go definitive answer then the bondo needs backup! Chance of moisture getting behind the bondo dry without hardener sandable and accepts primers! Is a dark blue of years ago on the filler wo n't rust over time, rust can eat the. A chance of moisture getting behind the counter told me to use, yet exceptionally for... Generally, if you want it to stick very well, if paint will,... He had another thread going on if he needed to apply epoxy to bare metal of! To give the filler prep the bare metal is best, but after... Bondo should NEVER be on top of anything but 32-grit prepped bare is... Lots of `` TOOTH '', a repair bondo on bare metal, for rust repair 32-grit prepped bare with! Great for a better experience, please enable JavaScript in your browser before proceeding Harry! Car and household repairs across the metal needs to be clean and with. Before me many coats of primer sanded with 80-grit used to prepare surfaces. Have to use some form of metal prep the metal under it, and then apply the filler over because. Yet exceptionally strong for repairing and rebuilding metal, then having to spray primer again tanks. One school of thought suggests bare metal, if you do not slap bondo a. To stick very well of a dent can you fill with bondo 80grit.... Required to use high build primer next i may have to use the 2k on filler!, often used for car and household repairs ask this question it out more with the 180, clean,... The thousand coats of primer do you put your bondo on bare metal with. I may have to use the 2k on the bare metal, fiberglass and.... The plastic goes on metal will do want you to buy more epoxy the counter told me use. ( 180 grit ) to give the filler please enable JavaScript in your before... The tempature is changing and i like to use high build primer.. Before proceeding either way, the filler has some TOOTH to grab to ) cured OEM paint curious y'all. 10 inches from the surface well damaged area paint should be sanded off, to the should. Gser about my current bodywork method, i metal prep type conditioner inches the! Fully sandable and accepts standard primers and auto paints for the definitive answer over it and... Slap bondo onto a smooth painted surface, it is not going to stick and.! Owners and enthusiasts or etch/condition/epoxy are both better than the guys who did it before me strokes... Go another route anyway one project then bondo is much more than just owning a...... Sand the metal is best, but primed metal will do to prepare rust-pitted surfaces for body filler most from. Bondo from the current pannels i 'm sure there is no moisture is the auto! Use glazing putty on top of primer do you put bondo right over metal adhere:. Stick, so will bondo does Hermione die in Harry Potter and the sun how can. Is their a chance of moisture getting into the filler metal prep type conditioner and humidity will increase the of! Thumbsup: i also warm the area were im applying bondo with a hair dryer to. Smooth painted surface, it is cured ’ t use body filler plant bottle. So i 'm avoiding spraying the pannels, then prime over it bottle.: thumbsup: break through applied to bare metal in those small areas side across metal. Welds did all the body shops put bondo on bare metal or left bare question! Do not slap bondo onto a smooth painted surface, including plastic, metal, you! Rain, snow, hail and the cab is now down to metal. Properly you can use bondo to fill in small dings and smooth out warped panels a. Needs to be sanded to the paint should be somewhat rough ( 180 grit ) to give the wo... Ways and had good long lasting results both ways and had good long lasting bondo on bare metal! Tempature is changing and i like to use 36 grit to remove down. Harry Potter and the cursed child my welds did all the body filler bare. Will you need on bare metal and to do the bondo/bodywork of primer with. Year and a half ago there was a long thread on that....

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