dilute the acid about 50-50 with water. Yep, that and don't breathe the vapors. Penetone Corporation, as part of the West family of companies, has been serving industry for over 100 years in the U. Let the cleaner sit for several hours to allow the solution to work on and loosen grime, rust and other deposits attached to the walls of the gas tank. Dump the nut, bolts, and rust out, refill with clean kerosene, rinse the bolts, dump them back in, and repeat over and over until the tank is clean. Whats people lookup in this blog:. For steel parts phosphoric acid might be better. The metal in our gas tank was still in good condition despite the appearance. (also at lowe's) just a half pint should work. If you want to clean a rusty tank, you will need some phosphoric acid. I had some cling wrap, just in case the liquids were to harm the paint, and some gloves for my hands (no eye protection) All ready Marine Clean time. Just don't leave the parts in the acid too long or it will start eating away at them. However, it can also cause you great harm if it is not used properly. For those of you unfamiliar with this nasty stuff, Muriatic acid gives off a pungent, burning, eye and throat irritating vapor which is especially dreadful in the confines of a boat or worse, the engine room. oxalic acid occurs naturally in rhubarb and suchlike so its organic and greener than other crazy james bond acids. I used 3 parts water to 1 part muriatic acid to clean the tanks. I can get the baking soda and acid but don't know which liner is best to use. Make about one Gallon, 25% mixture of Muriatic acid with water and pour about a quart of the mixture into the rusty tank. All methods I know of require the removal of the tank. (Some fuels contain up to 10% alcohol, which attracts water that accumulates in the tank. Acid washing is most commonly performed with hydrochloric acid (HCl) mixtures to clean out scale (such as calcium carbonate), rust, and other debris restricting flow in the well. Then use your sharpie and don’t touch the metal with your fingers as the oil will resist. To make your concrete floors resistant to future stains, apply a concrete sealant. Clean accumulated road dirt from top of fuel tank, taking special care around the pump access area. Cleaning Sharpie with Rubbing Alcohol! Get rid of those awful toilet bowl stains without scrubbing. Let the water and acid mixture rest for 30 minutes to an hour. CAUTION: MURIATIC ACID NEEDS TO BE HANDLED CAREFULLY. Once the loose rust is out, treat with phosphoric acid. I soaked inside of tank with muriatic acid and it removed all the rust, rinsed well and dried with a hair dryer, then followed the directions on the can. Used on an old sears roper mini bike gas tank and it worked perfectly. Both older and new homes can experience significant pipe problems, but you’re more likely to experience major failures in older houses. And don't use Kreem even if it does leak. Dump the nut, bolts, and rust out, refill with clean kerosene, rinse the bolts, dump them back in, and repeat over and over until the tank is clean. It was discovered by the alchemist Jabir Ibn Hayyan around 800 AD. I am actually leaning towards electrolysis, but I am a bit leery when it involves a gas tank. Next I began researching "how to clean rust from a fuel tank. Dilute with 2 parts water and fill it up. Muriatic acid is used to clean concrete (sold at hardware stores) but be careful with it (strong powerful. , Best and Quickest Way To Clean Hard Water Stains - How To Remove Lime Scale From Sinks , How To Regrain And Revive A. Plug the tank's hole with a cork and pour muriatic acid into it. picture of unusual way cleaning a go kart gas tank clean out motorcycle with vinegar. Our plant's 98% H2SO4 drum is a horizontal drum with a capacity of ~1900 L. It is a highly corrosive, strong mineral acid and has major industrial uses. I think if you did the muriatic acid bath it would produce several holes. All of the rust came off, I then used a drill bit just about the size of a track pin to clean out inside the rails. Re: Muriatic Acid for Gas Tank Cleaning That Por15 tank sealer is just awesome. sorry guys. DO NOT BREATHE THE MURIATIC ACID FUMES. Such cleaners will cause discoloration and corrosion to all metals. The Energy Co-op | Philadelphia's only nonprofit, member-owned, cooperative energy supplier. ChemWorld CID LH is an low pH organic salt (60% solution of Urea HydroChloride) that is commonly used as a replacement of inhibited diluted blends of Muriatic Acid. Only at www. Tank Cleaning Recommendations. U ntil recently, cleaning meant having your AC technician flush the system with Muriatic acid. Having a pressure washer is also extremely useful in every day life. It will be the color of mustard. I fill my tank completely to the top. Never use muriatic acid with aluminum. The stains have lightened up a bit but they are definately still there. Pinhole leaks spring up in a blink. The fuel tank has a black residue in it along with rust- a really old generator- and I was thinking about using some Brick Cleaning acid to try and clean up tank. After approximately 2 hours you should see rust sludge on the top of the solution. If the tank sat with gas in it that evaporated (like mine), clean the tank with a little acetone (or MEK) to remove the worst of the varnish left by the gas. Follow the directions on the bottle. It is a highly corrosive, strong mineral acid and has major industrial uses. Hi folks, I have recently experimented with a readily available (here in the US anyway) product that does a remarkable job of removing rust from the innards of a Coleman Stove fuel Tank. The patina left after an overnight bath in phosphoric acid will prevent rust for a long, long time. For electric units, you’ll have to use a flushing. Always pour acid into water, never water into acid. The fuel tank has a black residue in it along with rust- a really old generator- and I was thinking about using some Brick Cleaning acid to try and clean up tank. It doesn't take much to throw a carb out of working properly. If you want to clean a rusty tank, you will need some phosphoric acid. One question we commonly receive is what to do once the rust removal process is complete. In many cases these are very good choices, however, there are many considerations when selecting chemicals and these may not always be the best selection. customclassictrucks. I'll need to make several assumptions and provide multiple ideas here due to lack of information. Does anyone have any experience in trying to clean something like this, it is only about a one gallon tank. DO NOT USE ON ALUMINUM PARTS. The Creem version takes it a step further with a sealant for the inside of the tank to help keep any flakes left over to a minimum. This will actually sand out the surface rust. To remove rust, just buy the muriatic acid available in auto stores. Avoid getting the acid on metal parts because they can discolor. Gas Tank Sealer Kit Repair & Restoration Instructions. It is used in an aqueous form and has an unpleasant odor. This will clean out any gunked fuel and will allow the acid to dissolve the rust. Came home at about 4:30 and the house still had this smell to it and there was still standing water in my sink, it would bubble up but only every once in a while. Then just rinse in another coffee can of clean (not Flint, Mi) tap water. Posted: Fri May 27, 2011 7:06 pm Post subject: How can I clean Varnish out of a Gas Tank? Hey guys. The tank cleaning suggestions in this manual are guidelines and will be updated based on future experience Tank Cleaning Procedure These guidelines have been made up using the USCG Compatibility Guide to assign cargoes to different groups. You can purchase acetone and muriatic acid locally so all you really need is the sealer. I wouldn't use acid but I guess people do. Water has always been a problem in diesel fuel. Work it in, let it cool. You may have to wipe the pieces with a paper towel or cloth, but it will definitely do the job. Just an update everyone I decided to use Evaporust which I bought at Harbor Freight for my tank cleaning. One question we commonly receive is what to do once the rust removal process is complete. ) and rotate the tank for a bit to remove the worst of it. They suggest duck tape (It leaks) Mix the Cleaner/Degreaser (alkali based) 1:1 with hot water and shake/roll for 40 minutes. If you choose to use muriatic acid, combine 85. Phosphoric Acid in addition to being a chemical reagent, it has a wide variety of uses such as a rust inhibitor, food additive, electrolyte, flux, dispersing agent, fertilizers, and a in home cleaning products. How to clean rust out of a motorcycle gas tank - RevZilla. com Hydrochloric (muriatic) acid is an excellent and effective way to clean rusty steel. It's also effective at dissolving hard water deposits and removing dried cement and mortar residue from concrete and masonry. After about 15 minutes or longer, if the rust warrants it, drain the tank, remove the hardware and flush it with a little fresh gas or brake wash. Nerve wrecking I can tell you… I kept at it and emptied both one liter bottles eager to see if there was any leak, there was a little leak from one of the fuel lines, and small drips of acid went down on the inside of the wheelbarrow, and. The metal in our gas tank was still in good condition despite the appearance. So the tank itself is shot as far as I'm concerned. You need only a few ounces of each. Keep in the acid tank and use for acid wash. I am leaning more towards just cleaning and leaving it as is. Dry Acid isn't as safe as it seems, but it's a lot easier to use than Muriatic Acid. Phosphoric acid doesn't have this effect and by the time you neutralize it with for example with ammonia or caustic soda you have solved the problem with success. In any case the Evaporust cleaned it up great. It is totally clean at this point. Wear heavy rubber gloves, old clothes and eye protection when handling it. Never used this. Using Muriatic Acid to Safely Lower Your Pool's pH If this is your first visit, be sure to check out the FAQ by clicking the link above. What phosphoric acid will really do well is leave the inside of the tank coated with iron phosphate, which is somewhat rust resistant. The petcock will need cleaning but since it is made from aluminum the acid will harm it. When used as directed, Metal Rescue will remove rust without harming the vast majority of paint coatings** or other dissimilar materials in your motorcycle fuel tank. If your tank is larger, it isn't critical to soak the entire tank at once. The best course of action is to then coat the parts in diesel or oil. Carefully, mix half a gallon of acid with half a gallon of hot water. We are beginning restoration work on the first of several older gasoline-powered machines. Tanks cleaned this way tend to flash-rust in a blink. found a local company that does tank cleaning, but there process includes re-lining the tank, which I heard is something I don't want to do with a fuel injection engine. Moped Tank Rust Removal Long time blog readers will recall my previous bloggery about using acid to clean out a rusted tank. Also, it seems I'll need to do some rust removal before applying the product. 7- add in a small amount of gas and splash that around for about 10min. Once you’ve mixed it 1:1 or 1:2 (see below), with water, there is no appreciable odor, (I can’t smell it at all at either mix ratio). None of the radiator shops around here will touch gas tanks. Transporting the acid from the hardware store to the house can be hazardous also. Depending on what supplies I have on hand for cleaning and how much money I have I use different chemicals for cleaning. Electrolytic Rust Removal From a Motorcycle Gas Tank: The following is the process I used to remove rust from the inside of a motorcycle gas tank. Pour it in, swirl it around, rinse clean. If you are not sure it is rust, test with magnet. I would think that it would get clogged with the coating. Powder Coating: Chemical Parts Cleaning Guide April 3, 2015 by Muscle Car DiY When you set out to create any kind of finish, you learn that your prep work is the most important factor in getting good results. You should be good if you do this. Muriatic acid (not diluted – 100 percent strength) was used to clean the grout on floor tile in an existing bathroom and now the metal items in the room look pitted and tarnished. However you need to protect the metal from rust immediatly after removing, not sure about the zinc plating though. I read an article in a motorcycle rag that suggested taking the tank to a radiator repair shop and let them clean and seal the tank, since it is basicaly the same process as a radiator. Removing rust from a gas tank can be accomplished in a number of ways. This happens quite quickly anytime the finish (primer or paint) protecting the outer layer of the steel is exposed to water and salt that's lying on the road or is in the air. So I placed the tank on the wheelbarrow and brought it out into the open, then I put on my protective gear (protective face mask, latex gloves and latex/rubber clothing. Gas tank absolutely eaten up with rust. Pinhole leaks spring up in a blink. Gas Tank Sealer Kit Repair & Restoration Instructions. The acid will usually clean up the stains, rust, and whatever, if the bottles are soaked in them. to/22aCQGo I use Muriatic Acid(32% Hydrochloric) mixed with. Place tank right side up and remove the filler cap. Either way you go, use dishwashing gloves or you will be one or two layers less skin by next days lunch. How to: Clean Rust from a Fuel Tank (using Phosphoric Acid) Post by radare » Thu Nov 10, 2011 12:50 am I've restored four rusty fuel tanks, to date, and have honed a process which works quite well:. I have a gas tank which I am trying to get rid of the rust inside. I did this procedure before I was a member of VN750. A solvent wipe before painting didn’t work with POR-15; in the lab we found it did more harm than good by leaving a residue that didn’t help. - seal all openings - shake the beejeezuz out of the tank Removes all the rust inside the tank. In spite of it’s availability, it is dangerous. Mixed with Chlorine, and you can create a very dangerous mustard gas. This can be washed down your drain or evaporated in the back yard. For goodness sake, DON'T go putting lugnuts, bolts, nuts, chains, etc. Most commonly used plastics are fairly resistant to hydrochloric acid. Tanks are getting a bit hard to find in decent shape. You can purchase acetone and muriatic acid locally so all you really need is the sealer. However, when either acid is used, one has to take an immense amount of care while undertaking the cleaning procedure. Hydrochloric acid, also known as strong water or muriatic acid, is a chemical normally used for cleaning hard surfaces and surfaces which are hard to clean, such as brick, concrete, and others. So far it's been holding up pretty well. Download Pool Tip #18: Use of Carbon Dioxide for pH Control (PDF format, 21KB). It was just sitting where it was, not attached to the metal anymore. That tank did flash rust and I retreated it and then neutralized the acid ASAP. in your fuel tank. All have smallish steel fuel tanks with much solid crud inside- are there any tricks for cleaning this stuff out? Two are mid-60's Cub Cadets- tank replacement is not an option, and there is no rust-through or even major external pitting on the originals. The petcock will need cleaning but since it is made from aluminum the acid will harm it. Oily Clean-up Materials. Drain gas and rinse tank in hot water. Flush the water heater by opening the cold water tank shutoff valve, flushing cold water into the water tank intermittently. Cleaning Rust from Cold-Rolled Steel Question: How can we clean the rust off of unpainted cold-rolled steel parts slated for electrocoating that underwent an atmospheric corrosion attack from an accidental release of muriatic acid vapors in our plant?. First I used engine degreaser to get rid of the goo, and rinsed the tank with water, Second I used muriatic acid to clean out the rust, rinsing the tank with water repeatedly until I was sure that the acid was neutralized, And finally after the tank had dried completely, I used a product called Red Kote to seal the tank and prevent future rust. So I am cleaning the tank on my '76 CB750F and I get finished cleaning it, and I realize there are metal flakes in the tank. sorry guys. I've read methods that involve vinegar (weak acid), muriatic acid, toilet bowl cleaner, etc. All of the rust came off, I then used a drill bit just about the size of a track pin to clean out inside the rails. 12 More Easy Life Hacks That Will Make Spring Cleaning Easier - Armonth Your dishwasher simplifies the daily routine of cleaning mountains of dirty dishes and cookware. Can I take apart the heat exchanger on my 470 and drop it in a Muriatic acid and water solution to clean it out? Then reassemble it with new gaskets. It's green and sells as metal Etch and Prep. The discharge water was a hotter than it should be. It's not at a severe level of rust on the inside, so I'm wondering what I should do, if anything. Phosphoric acid also doesn't seem to harm paint or aluminum from what I read. Only at www. I found the best way to clean rusty gas tanks is to fill the gas tank and cleaner tank with apple cider vinegar. Need to clean out a gas tank on my '64 Triumph Spitfire and I read in a spitfire forum that filling the tank with cheap white vinegar and letting it set for about 48 hours would clean out the rust. Radiator/Support Frame/Shroud Restore. Move the tank around for a few minutes so the solution covers the inside completely. 00 !!!! I recently read somewhere here or on another site of a way to clean rust from within a gas tank for $30. Smith, available in 1 gal. I had to acid wash the tank more than they said, but I was happy with the rust removal. Sodium Hypochlorite 12. It is also often used for pickling of steel, where rust / iron oxide is removed prior to further processing. I had some cling wrap, just in case the liquids were to harm the paint, and some gloves for my hands (no eye protection) All ready Marine Clean time. I would think that it would get clogged with the coating. Gas tanks of the teens through the 1950's and even later can have a number of chambers created with the inclusion of baffles. Anywhere the acid touched is now clean. Before the acid rinse you should clean the loose rust out by putting in a handful of nuts (square ones are best) & bolts (short) with some lacquer thinner. I have a tank that was sealed before I got it and now it is leaking again. i have did this on 3 tanksno problems. When it comes to autos, a bad gas tank is a one-way ticket to the slow lane. Muriatic acid or phosphoric acid can be used to clean the tank. Hydrochloric / Muriatic Acid 32% Concentration by Duda Energy Hydrochloric acid is a clear, colorless, highly pungent solution of hydrogen chloride in water. The white flowcoat finish would be restored to pristine white. Use muriatic acid to clean rust from porcelain, fiberglass, bricks and tiles. CLEANING GUIDELINES FOR STAINLESS STEEL Do not use cleaners containing Muriatic or Hydrochloric acid. Introduction Video. Hydrochloric (muriatic) acid is an excellent and effective way to clean rusty steel. All methods I know of require the removal of the tank. buy a gallon of muriatic acid, swish it around the tank, it will eat the rust until its clean inside, do not leave it in there any longer than it needs to do the job,,then fill with water and baking soda to neutralize the acid so it does not keep eating the metal, swish it around more and flush clean with water, dry out the tank and I like to spray light oil or penetrate oil in it as with this. Cleaning Troubleshoot; Tank Cleaning Manual; Testing Methodologies; Tank Cleaning Best Practices; Final Cleaning Steps; Cargo Cleaning Tips; Tank Lining Types; Cleaning Vegetable/Animal Oil; Drying Products Cleaning; Tank Cleaning Procedure. Be sure to wear a face mask, gloves and goggles while performing this task. Muriatic acid is a weaker mixture of Hydrochloric acid, don't let that fool you, it is still very potent stuff and should be handled with the utmost care. Use a fan or dehumidifier to help facilitate drying. There are very few instances in which we consider acid curing a necessity over a bleach or natural live rock cure. To remove rust, just buy the muriatic acid available in auto stores. the other third of the tank is hidden behind a blind baffle with only a small opening at the bottom center, which by the way for those. I had to acid wash the tank more than they said, but I was happy with the rust removal. All work with concentrated hydrochloric acid should be done inside a fume hood. Muriatic acid is a weak hydrochloric acid, and any chlorides. What I did first was get some Muriatic Acid from Mexico (supposedly they don't sell it here) tossed it in the tank along with some nuts and bolts and sealed the tank and shook it all up vigorously, then let it sit for a day. customclassictrucks. 45% active chloride. Gas tank absolutely eaten up with rust. com) Just ordered a few pounds of it this morning, it "should" remove the rust in my Kaw tank and it's great for removing rust on shop tools or whatever too. Sadly, many of the solutions are also a pain. My recommendation is, trying using regular old store-bought vinegar first. I have dealt with rust in many old gas tanks I've used in Hot rods over the years, the best thing I ever found was muriatic acid to get rid of the rust. I would clean as much rust off as possible with a wire brush and then use phosphoric acid bought at a paint dealer so that it is in the proper concentration. I was originally going to use muriatic acid to clean the tank because I had some sitting around, but I figured it would be too caustic. The vinegar did the job, it just didn't move the rust anywhere. O’Day Equipment provides dome end fiberglass tanks from Xerxes and Containment Solutions. 5- drain vinegar. Convenient Features Include:. Phosphoric acid doesn't have this effect and by the time you neutralize it with for example with ammonia or caustic soda you have solved the problem with success. Sometime an hour or two does it other times it may take 24 hours. This is what radiator shops used, at on time, to "boil" gas tanks. How to use muriatic acid. If you want to do it tomorrow, go to NAPA and pick up a quart of Red Kote tank sealer. Transporting the acid from the hardware store to the house can be hazardous also. This will leave you a few minutes to flush with acetone to dry the water, and then rinse with wd40, 2-stroke oil, mmm or whatever. And it may not be the best thing for some of your fuel tank's components. Once clean to your liking, rinse with clean water and dry. It's two parts, one is an acid based cleaner, and the other is a sealer that you slosh around to coat all parts of the inside. With the exception of some plastics, muriatic acid can damage most anything it touches, including clothing, metal, and skin! It emits a suffocating odour that can quickly burn the lining of the nose, throat and even the lungs. Muriatic acid is the ancient name for Hydrochloric acid one of the most vicious acids. I know a lot of motorcycle guys use muriatic acid to cure this but does anyone have experience with a LC?. I used 3 parts water to 1 part muriatic acid to clean the tanks. Rust never sleeps, and whilst the first rule is never to let your fuel tank rusty in the first place, with some of the fuel formulations which people are putting in their tanks these days, it can become an almost inevitable side effect of driving. Then slush it with tank sealer and that is the end of it. When done can soak in baking soda solution to neutralize the acid. Re: Salt-X or muriatic acid for risers & manif Muratic acid will remove rust. Next I began researching "how to clean rust from a fuel tank. Recent Examples on the Web. The acid is widely available at home supply stores. Stuff needed to do this procedure:. Revolutionize the way you remove steel substrate rust Praar’s rotar ® DeRUST™ Rst Reoer oes sart” astat a eete rst reoa teoo t a ree eroeta at As an industrial welder or fabricator, you know that removing rust oxides from metal and painted metal surfaces is typically a multi-step operation. The really sad thing - After a very thorough cleaning and re-stone guarding the outside about two months later I was lowering the tub on my scissor lift (just a few inches) and didn't realize the tank was under the rear end and put a huge dent in the top. Neutralization after treatment is as easy as rinsing with a soapy solution. It is Prestone Super flush. It is also known as spirits of salt or acidum salis. When used as directed, Metal Rescue will remove rust without harming the vast majority of paint coatings** or other dissimilar materials in your motorcycle fuel tank. Does anyone have suggestions as to how to accomplish this? Thanks in advance. Researchers should wear lab coats, gloves, and safety goggles or safety glasses with side shields when handling hydrochloric acid. With the form of an bellcrank not to all the thermal process so that the main body is connected to the key under the opposite rod per pound it connects to the stop position. Occasionally pick the time up and shake it to assure a well mixed solution. Muriatic acid is the ancient name for Hydrochloric acid one of the most vicious acids. Google "Gas Tank Cleaning". fill fuel tank all the way to the top of the filler neck. When dry it has bonded to the metal. Disassemble the fuel sediment bowl, clean in muriatic acid and replace the filter screen. Just an update everyone I decided to use Evaporust which I bought at Harbor Freight for my tank cleaning. Tank Cleaning Recommendations. And this is what you get, Marine Clean to clean all the crap, Prep and ready to get rid of rust and prepare the tank for the fuel tank sealer, and final part, the fuel tank sealer. Need to clean out a gas tank on my '64 Triumph Spitfire and I read in a spitfire forum that filling the tank with cheap white vinegar and letting it set for about 48 hours would clean out the rust. I had a '66 tank with bad rust. Get the Home 1L Muriatic Acid at your local Home Hardware store. You may find one where you are that will but don't count on it. Muriatic acid should be diluted to at least 1 part acid to 10 parts water. After 1 hour, pour out the soda solution, take the duct tape off of drain and fill cap on top of tank. Penetone Corporation, as part of the West family of companies, has been serving industry for over 100 years in the U. Safety Information. The lump may be gas tank sealer. Muriatic acid is one of the names for hydrochloric acid, a corrosive strong acid. Stabilizes fuel chemistry during storage, cleans injectors, and removes carbon deposits. I have a 1978 Honda Express 49cc moped, the gas tank had rust collecting in it and I've tried everything before going to muriatic acid. I could have purchased 5 gallons of muratic acid for that price. In addition, acute inhalation injury may also be associated with burns because many agents or conditions causing burns also affect the airways as can occur in smoke inhalation without burn [1–5]. Its fumes can be highly toxic when they are released into air. i have did this on 3 tanksno problems. Use a plastic bucket to mix it in and always add the water to the bucket first, and then slowly pour in the muriatic acid afterward. fill fuel tank all the way to the top of the filler neck. It is actually in really nice shape, but to see all of the issues it needs to be clean. This will scrape the loose rust and remove the oily gasoline residue. Gasoline and E85 will NOT cut varnish. Pour hot water in the tank till it is half full. Electrolytic Rust Removal From a Motorcycle Gas Tank: The following is the process I used to remove rust from the inside of a motorcycle gas tank. It's green and sells as metal Etch and Prep. To dry the tank I use my air blaster that is for drying bike after a wash. Shake the tank vigorously for about 15 minutes. That is why is is important to know how to restore your gas tank to rid it of any rust and seal any minor leaks. give it one or two days to work. DON’T use tooling with iron content in a shop environment that is not exceptionally clean. How to Clean a Sand Pool Filter. However, I've seen pictures where the sealer pealed away from the sides of the tank and clogged up the lines. Carefully, pour about 12 ounces of muriatic acid into the tank and tape up the gas cap hole. The fact is pre-mixed liquid irrigation rust stain prevention chemicals are much weaker, because of dilution. Tape up openings. On the Vulcan 750, the fuel gauge sending unit would also have to be removed, and the hole in the bottom sealed somehow. The usual for acids, black rubber gloves, eye protection and have a garden hose or someway to flush if it splatters on you. Most public pools use chlorine gas and -of course- then they need to raise the ph. Flushed all that out then redid it with some soap. Alot of people use it to clean their pools. I have used the CLR with no success, but it was in a tank with heavier rust. Eastwood's exclusive gas tank sealer kits have nearly everything you need to clean a rusty, old, varnished gas tank of all the fuel residue and gunk, and seal it with a virtually impervious internal coating. Volcanoes spew muriatric acid into the air during eruptions. Both use muriatic acid to clean the rust and then you rinse with water and then isopropyl alcohol. There are many products with 31. So, here are the manufacturers web sites that have calibration charts specific to their designs. Though the process for removing rust from your gas tank is easy enough that you can do it yourself, you will want to ensure your safety and employ adequate safety measures due to the caustic fumes the muriatic acid emits. A 70/30 mix will clean it in about a day, maybe 2. Do-it-yourselfer's should avoid muriatic acid where possible. Info by Eric Lewis. Re: How to remove rust from a gas tank? 69F100 on October 16th 2013, 8:23 pm I have used gravel but wash it good to get all the dirt off it then put it in the tank with dish soap. Apply an absorbing material to the spill site to absorb the neutralized muriatic acid. In a gas tank, you're soaking the inside of the tank by filling or partially filling the gas tank. The Creem version takes it a step further with a sealant for the inside of the tank to help keep any flakes left over to a minimum. Welcome to the board! Welcome to All Users. They said it needed to be cleaned with acid and then coated inside with a special coating to keep this from happening again. Just find a way to plug the tank and pour a mixture of muratic acid and water into tank and it will do all the work for you. Our problem is that right after the acid pickle, the tanks flash rust severely before we can get them into the zinc phosphate solution. After cleaning, FM 642-ES Bling a tough weather-shield to protect against salt water corrosion. 45 strength Muriatic Acid. then pour in your liner and you are good to go.