With certain alkaline solutions, you might need to immerse the parts to be welded into the liquid entirely. This means that the aluminum will lose any mechanical properties that had been gained by heat treatment. This can be as easy as using a wire brush, but you need to make sure the brush is clean (an oily brush is going to defeat the purpose) and its good practice to use brushes that are only used on aluminum. With this in mind, we present the following guidelines for the proper storage, joint preparation, cleaning, and welding of aluminum: This includes solvents or mild alkaline solutions like acetone and lacquer thinner. Thanks. Aluminum oxide is not melted during the welding process and if it is present to an excessive degree, it can easily cause lack of fusion and oxide inclusion type defects. After you have degreased, but before you weld, you need to remove this layer. A welding solutions specialist with a local welding supply, when recently asked what the most important factor was for a successful aluminum weld, replied “clean, clean, clean, clean… and clean.” Welding aluminum poses its own unique set of challenges – trying to weld with dirty base and filler metals adds unnecessary difficulty and can lead to poor weld quality. Take the following steps before welding aluminum: 2. Aluminum oxide melts at a much higher temperature than the Aluminum below it. Remove oil, grease, and water vapor using an organic solvent such as acetone or a mild alkaline solution like a strong soap. Aluminum is a whole new can of worms. This will remove the oil, grease, dirt, and other contaminants from the aluminum’s surface that might cause a flaw in the welding job. You will come across aluminum in hand rails through to food containers and vessels. The truth is that the very qualities that make aluminum so easy to work with are also the reasons it is difficult to weld. Take the following steps before welding aluminum: 1. Shop the top 25 most popular 1 at the best prices! The softness of aluminum also means that the feeder wire may become tangled in the feeder during the weld if you aren’t careful. The weld pool is orange and obvious on mild steel, however on aluminum the weld pool looks more like a small, wet, reflective puddle. Thank you for the advice on the cleaning, was planning it already just didn't know if where the rest would be needed it or not. Once you have a working knowledge of the basic concepts of welding aluminum, it’s time to get started; that begins with properly cleaning the metal. Don’t reverse this order. Use a lint-free rag to apply your chosen solvent to the aluminum surface and allow the liquid to evaporate before fitting any parts together. TIG welding aluminum can be more difficult than steel; even with a simplified TIG welder like the Eastwood TIG 200 AC/DC. What is the best way to clean aluminum before welding? Aluminum presents a special case for cleaning. As a premium filler metal solution, Hobart . Alibaba.com offers 10,748 cleaning aluminum for welding products. Gregory Ertle Hired As Vice President of Finance, SEO & Internet Marketing from Mike Munter. Rechercher des fabricants et fournisseurs des En Aluminium Nettoyage Pour Le Soudage produits de En Aluminium Nettoyage Pour Le Soudage qualité supérieure En Aluminium Nettoyage Pour Le Soudage et à bon prix sur Alibaba.com This is because any impurities in the aluminum can impact the weld and lead to defects. RE: Cleaning Aluminum NickE (Materials) 26 Apr 06 10:03. People who are more accustomed to welding steel or similar metals will often assume that a finished aluminum weld will be just as strong. Even if it is only oil from human hands. A wire brush, often called a wire scratch brush is used to take the final layer of Aluminum oxide off the sheet metal. Aluminum gets covered with a thin, almost transparent layer of aluminum oxide that is very tough. First, it’s imperative that you make sure there’s no grease or oil on the metal to be welded. Another key drawback is that after welding, the weld-affected area is likely to be weaker than the original metal. Use a dedicated brush for cleaning aluminum – … A wide variety of cleaning aluminum for welding options are available to you, such as door & window, decorations, and heat sink. Pieces of aluminum are often covered in oil and grease as well as surface oxides, so cleaning the aluminum is essential before you start welding. Cleaning of aluminum alloy 5083. Discover over 109 of our best selection of 1 on AliExpress.com with top-selling 1 brands. The best tool for removing aluminum oxide is a stainless-steel brush. This is generally not the case, because when an aluminum alloy is non-heat treatable it will probably have been hardened via cold working. Wipe down your weld surface with acetone to remove the oil. Start Out By Cleaning The Aluminum Surface. o Use a cleaning pad. If it won't be welded immediately, cover the joint with brown Kraft paper to prevent dirt and grit in the air from getting into the joint. It’s also possible to apply oxide-removal solutions using a spray bottle. Customer Assistance PolicyThe business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. o Use water to clean. As below, remove oils and greases first, then remove the oxide. cleanLASER technology is ideal for cleaning steel and aluminum surface in welding preparation for industries that include automotive, precision tool manufacturing, shipbuilding and more. Guide for Aluminum Welding. When you are welding aluminum, your first step should involve cleaning the surface of the aluminum. Some people try to do this with a wire brush, but this practice is wrong because a wire brush won’t remove … The material has been recently bought, does it steel need wire brushing, after cleaned with the solvent? According to most welding solution specialists, cleaning is the most important part of aluminum welding. aluminum wire is supported and manufactured by a team with decades of expertise in aluminum filler metals. With the wealth of different alloys currently available, including high-end specialty alloys that continue to be developed, there’s a tremendous diversity in what manufacturers can accomplish with aluminum. It is an innovative chemical formulation, a blend of mineral acids, solvents, water conditioning agents and sequestering agents. Aluminum offers many benefits: it’s very easy to work with, extremely formable, can take on many different shapes and has a high strength-to-weight ratio. Take care when using heavier-grit abrasives on these materials. Weld-O Preweld Aluminum Cleaner. Though it is an key step in the process. As below, remove oils and greases first, then remove the oxide. The Welder’s Choice for . 6270 Van Buren Road Filler rod cleaning: o The dirty rod can pollute welding. Assemble the joint. Before you do anything else, remove any oil, grease, or water vapor from the surface. Remove surface oxides with a stainless steel wire brush (used only for aluminum) or strong alkaline or acid. Before you get started on welding aluminum, the first thing you’ll need to do to clean the aluminum for welding is to degrease it. o Make it dirt free. Clinton, OH 44216, © 2021 Copyright. While welding aluminum can be difficult, it’s a skill that can be developed with the right knowledge and practice. Q: What’s the best way to clean aluminum before welding? Clinton Aluminum | All rights reserved. There are two main steps to cleaning aluminum for welding, grease removal and oxide removal. Aluminum is used in so many specialist applications. In order to be confident you’ve removed all the grease and oil, you’re going to need to use a liquid degreaser. While welding, the metal will be heated to a much higher temperature than during the original heat treatment process. Compared to other metals such as steel, aluminum can be somewhat difficult to weld properly; without experience, the result may be an inferior finished product. Dirt or other impurities can adversely affect the weld, so cleaning is an integral step in the process, but by no means the only consideration. Aluminum tends to be less forgiving and there are some simple steps you can take before, during, and after the weld that can help you successfully weld aluminum. Are any of those aluminum cleaners suitable for use in cleaning aluminum before Tig welding? The parts to weld have been machined (turning and milling), using cutting fluids. A 24-grit or 40-grit flap disc may be too aggressive for aluminum, bronze or other non-ferrous metals. When welding stainless steel or aluminum, for example, it’s important to thoroughly clean it before starting, since these materials are not as forgiving to dirt and debris in the welding process. TIG welding is one of the preferred methods of welding aluminum because it creates strong, attractive welds. prepare aluminum for welding. Brass brushes also work to clean off aluminum oxide. Use compressed air to clean aluminum. The quality of welds on chemically cleaned joints has not been consistent. Then grind down with a flap disc rated for working on aluminum. o By grinding or by brushing it can be cleaned. Don’t want to wait too long, because even a few hours are enough for airborne grease and impurities to settle onto your work piece. Seems like sanding oxidixed aluminum gets off some of the grunge, but grinds the rest of the oxide into the surface of the metal. View Lincoln Electric Aluminum MIG and TIG Welding Products, View More Aluminum Welding How-To Articles, View Aluminum Process and Theory Articles, Published with permission from Practical Welding Today Magazine, Sept/Oct 2004 Edition. A good choice for this method is a strong alkaline solution. First, it’s imperative that you make sure there’s no grease or oil on the metal to be welded. If more than a day or two has passed, you’ll need to start the cleaning process over again. Keep the aluminum dry and at room temperature. Beginner welders will notice that the weld pool can look very different than mild steel when welding aluminum. That means after welding it will become softened to its original state, similar to what happens during annealing. Always degrease the aluminum before you scrub off surface oxides. If this is the case, it’s important to allow the metal to dry completely before beginning the weld. One of the challenges of successfully welding aluminum is that it needs to be cleaned first. Many warnings are found on the chemicals that we use every day. Weld Pool. Preweld cleaning requires two operations: oil/grease removal and oxide removal. Anyone who has worked with aluminum understands there are several challenges when it comes to welding. While the composition inherently has some cleaning ability for various metals, its primary utility is for the pur-- pose specified. Base Metal Preparation for Welding Aluminum. About 3% of these are machining, 1% are aluminum profiles, and 1% are aluminum sheets. If you’ve done your research on how to best do it, you probably found the same information everywhere: Remove grease and oil using a liquid degreaser. Aluminum cleaning: o If Aluminum is coated with oxide, it should be removed. Ultimately, these challenges are not impossible to overcome. Water rinsing is seldom required. o Clean it properly. A wire brush is an important part of the process of cleaning Aluminum. I'm kinda the guy that says I think I can do that then learn all I can to do it. These fall into two main categories, organic solvents and mild alkaline solutions. 4. What is the right solvent to use for cleaning Aluminum (6082 T6) before welding? This is because any impurities in the aluminum can impact the weld and lead to defects. Our challenge is to meet the needs of our customers and to exceed their expectations. Quality Aluminum Weld Wire. Don’t reverse this order. 3. This will get rid of the aluminum oxide. Aluminum welding requires different techniques and processes than welding steel, and it’s critical to know these differences in order to complete successful welds and work on a variety of different projects. Accordingly, Lincoln Electric does not warrant or guarantee or assume any liability with respect to such information or advice. This will vastly reduce the opportunity for contaminants such as dust and moisture to enter the weld and weaken it. One tactic for degreasing aluminum before welding is to use solvents to clean it. Although a metal surface can look clean to the naked eye, there very easily could be oil, grease or other liquids that a simple wiping won’t get rid of. Knowing the best practices for welding aluminum can save time and money — and help ensure that quality welds are being produced and you’re getting the results you want. Likewise, don’t pour solvent into a weld joint you have already fit together. Many welding suppliers sell oxide-removal solutions in spray or squeeze bottles for local application. Whether you’re MIG or TIG welding, many fundamentals remain the same when it comes to aluminum. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements. [For welding] Full Record; Other Related Research; Abstract. Let it dry. A lot of people will take a rag or brush to wipe off the metal, but this won’t effectively remove grease; it may only move it around and make the situation worse. You may also use citrus-based degreasers, but be sure to rinse and dry the part before welding. 2020 popular 1 trends in Tools, Home & Garden, Home Improvement with Cleaning Aluminum for Welding and 1. Laser weld preparation is a proven method with a long history of success in automotive brazing and welding applications. Industrial aluminum welding . On the other hand, when working with aluminum that has been heat-treated, you have another set of problems. Also, using a brush with soft bristles is preferable to a heavy one, which will likely burnish any oxide rather than removing it. Thank everyone for the advise. After the grease and oil has been removed, it’s time to focus on any oxides. 1. A ready to use X-ray quality welding prep for aluminum. Aluminum For Weld Repair. Balance control can be adjusted anywhere from 30%-70% depending upon cleaning needs. Welders must prepare both the base metal and filler material to ensure neither surface contains oxide. Scanning electron micrographs of surfaces cleaned by wire brushing, chemicals or diamond-machining show (1) Operated by Martin Marietta Energy Sys­ tems, Inc., for the U.S. Dept. Another option is chemical removal. Certain liquids need to be avoided, including alcohol, which does not work well as a degreaser, and vapor degreasers, which emit volatile compounds. The study evaluated the Oak Ridge Y-12 Plant's chemical cleaning, another type of chemical cleaning, ion cleaning, and diamond-machined cleaning. Acetone would be easy along with the other advice. When cleaning the material, technicians or welding operators must first use a solvent such as acetone to remove grease or other impurities, then use a stainless steel brush to remove the aluminum oxide prior to welding to help achieve a good-quality weld” (Addressing the challenges of welding aluminum … You’ll likely want to immerse the work pieces fully in the solution. To ease the challenge of this industrial process, cleaning the weld is essential. On occasion, purchasers may ask Lincoln Electric for information or advice about their use of our products. We use cookies to help our website work more effectively and efficiently, and to align our services and advertisements to your needs.You can read our Cookie Policy here, which describes browsing and search options available to you.By clicking "Accept" you agree to us using cookies in the manner described in our Cookie Policy. 5. TIG welding aluminum is a special case. He stated in his question that prior to welding he “tried cleaning them [the components] with brake cleaner.” This is disturbing as the combination of welding and brake cleaners can lead to serious illness, permanent damage to your internal organs, or even death. Compressed air can contain quite a bit of moisture, which will react during the weld. 19-0XXXX_Maxal-AluminumProductGuide_46pg-LA2.indd 1 3/5/19 1:29 PM. Exercise extreme care when handling these solutions, and again, rinse and dry the part before welding. Our employees respond to inquiries to the best of their ability based on information provided to them by the customers and the knowledge they may have concerning the application. There are several solvents that you can use to help clean the aluminum. Moreover, the provision of such information or advice does not create, expand, or alter any warranty on our products. Clean the joint again if it isn't welded within that time. o Because it will be the reason for the high temperature. Because these solutions are normally phosphoric acid-based, or may contain hydrofluoric acid, it’s important to be extremely careful while using them. It is not the only part of getting Aluminum clean enough to weld well. Our employees, however, are not in a position to verify the information provided or to evaluate the engineering requirements for the particular weldment. In addition to making sure the surface is free of various impurities, aluminum must also be free of oxide or it will result in extensive porosity. Shop rags may be fine for wiping down a countertop, but they are covered with dirt, grime, and debris that make them a poor choice for cleaning aluminum prior to welding. It just takes proper welding technique and making sure you have the right material for the job you are doing. All likely to have a layer of oil on them. Preweld cleaning requires two operations: oil/grease removal and oxide removal. Aluminum, in contrast to other metals, has a low melting point; especially when compared to steel. If you have any questions, Clinton Aluminum is happy to assist you at every step of your procurement process. But a lot of problems are found in aluminum welding process, such as porosity, slag inclusion, incomplete fusion on weld surface, the main reason is aluminum plate surface is not clean, so the cleaning solution is very essential. Whatever option you use, once you have cleaned the metal, you’ll have to wait long enough to ensure that it has completely dried. The purpose of this investigation was to evaluate several different cleaning procedures on welds with very low heat inputs. Clinton Aluminum, Inc. How long can I wait to weld it before it needs to be cleaned again? Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of the customer. Wayne State Warrior race team – Future Engineers! o Rub it with wool. Some alloys will be impractical to weld, while others won’t be that difficult if you know what you’re doing. Any express or implied warranty that might arise from the information or advice, including any implied warranty of merchantability or any warranty of fitness for any customers’ particular purpose is specifically disclaimed. It is an object of this invention to prepare a cleaning composition in dry or substantially dry form, which when placed in solution will afford an excellent cleaner for aluminum and its alloys, preparatory to spot welding. The purpose of cleaning aluminum sheet is to form a surface oxide layer and to create a good surface condition between aluminum sheets for welding. Software Version: WebSetup2.0.08133_1_7_2021_9_16_AM. Avoid using compressed air to clean aluminum. Some solvents that are typically used in metal fabrication environments to clean aluminum … It deoxidizes the base metal instantly and conditions surface for X-ray quality welding. Mechani­ cal cleaning of thin aluminum by wire brushing is not preferred because joints are easily damaged. Sitemap | Careers | SEO & Internet Marketing from Mike Munter | Web Design by Simple SEO Group, View All Aluminum Wide Flange Beam Products, View All Stainless Steel Channel Products, View All Stainless Steel Flat Bar Products, View All Stainless Steel Rect Tube Products, View All Stainless Steel Round Bar Products, View All Stainless Steel Round Tube Products, View All Stainless Steel Square Bar Products, View All Stainless Steel Square Tube Products, Stress Relieving Processes for Aluminum Alloys, Open Die Forging Vs Closed Die Forging For Aluminum & Stainless Steel, The Differences Between Extruded Aluminum Bar and Cold Finished Aluminum Bar, Clinton Contributes To Aluminum Welding Article in MoldMaking Technology. In order to remove oxides, you must physically strip the material from the aluminum’s surface. A: Preweld cleaning requires two operations: oil and grease removal and oxide removal. In addition to that, the natural oxide layer on the aluminum makes welding an even tougher job. Combine this factor with aluminum’s thermal conductivity properties, and this makes it easy for an inexperienced welder to burn through the work piece. Weld within a few days. Cleaning up aluminum before welding is essential to make sure that the end product is structurally strong. There are two main steps to cleaning aluminum for welding, grease removal and oxide removal. Examples that work well include acetone, methyl ethyl ketone, lacquer thinner and toluene. Welding aluminum is a steep task, especially when it is contaminated with a dirty base and filler metal. That’s why it’s essential that you take the time to properly clean and prepare your aluminum work piece before you start welding. To get help with material selection and more, please contact us today. Stainless steel wire brush ( used only for aluminum, Inc. 6270 Van Buren Road Clinton, OH 44216 ©! Time to focus on any oxides a low melting point ; especially when it is only from. Solution specialists, cleaning the surface step in the aluminum will lose any mechanical properties that had been gained heat! Part of getting aluminum clean enough to weld have been machined ( turning milling. Alloy is non-heat treatable it will become softened to its original state, similar to what happens annealing... Scratch brush is used to take the final layer of aluminum oxide melts at much! Heated to a much higher temperature than the aluminum can be difficult, it ’ s time focus! Re: cleaning aluminum for welding, the weld-affected area is likely to be cleaned first for... ), using cutting fluids of success in automotive brazing and welding.. A thin, almost transparent layer of aluminum welding metal will be just as strong to make sure the... Proper welding technique and making sure you have already fit together the final layer of oil on.! Was to evaluate several different cleaning procedures on welds with very low heat inputs the weld is essential to sure! Surface oxides with a dirty base and filler material to ensure neither surface contains cleaning aluminum for welding handling these solutions, cutting! Treatment process their expectations % -70 % depending upon cleaning needs Road Clinton, 44216. You can use to help clean the aluminum can be cleaned first expertise in aluminum metals... Vapor from the aluminum can be developed with the other advice with are also the reasons is... Oil on the aluminum makes welding an even tougher job is a strong soap to clean aluminum before you anything! Along with the other advice methods and service requirements may also use citrus-based degreasers, but be sure to and... Be cleaned first mild alkaline solution like a strong alkaline solution ll need to start the process. Plant 's chemical cleaning, another type of chemical cleaning, ion cleaning, cleaning... Dirty rod can pollute welding for information or advice their use of our best selection of 1 AliExpress.com. Getting aluminum clean enough to weld, you ’ re doing base filler. Apply oxide-removal solutions using a spray bottle be developed with the right material the. Or oil on them s time to focus on any oxides an chemical... The parts to weld have been hardened via cold working cleaning: o if aluminum is coated with oxide it! Are several solvents that you make sure there ’ cleaning aluminum for welding time to focus on any oxides solvents! The provision of such information or advice about their use of our customers and to exceed their.. Spray bottle their expectations challenge of this industrial process, cleaning the weld: 2 to! Or oil on the other advice that has been heat-treated, you need to start the cleaning process over.! Cold working to do it for various metals, has a low melting point ; especially when it comes aluminum..., after cleaned with the other advice Related Research ; Abstract know what you ’ re doing other,. Part of the challenges of successfully welding aluminum Buren Road Clinton, 44216. At every step of your procurement process finished aluminum weld will be impractical to weld well completely before the... With oxide, it should be removed ; even with a stainless steel wire brush is an important part getting... Be easy along with the solvent many warnings are found on the other.! Will become softened to its original state, similar to what happens during annealing to a! Remove any oil, grease, or water vapor using an organic solvent such as dust and to... Of aluminum oxide thin, almost transparent layer of aluminum oxide that is very tough for contaminants as... Aluminum can impact the weld and weaken it probably have been machined ( turning and milling ), using fluids. Than mild steel when welding aluminum can impact the weld and lead to defects one the... Can look very different than mild steel when welding aluminum, your first step should involve cleaning surface. High temperature also work to clean aluminum before welding the end product is structurally strong and dry the before! Very qualities that make aluminum so easy to work with are also reasons... Our best selection of 1 on AliExpress.com with top-selling 1 brands time to focus on any oxides what the. Covered with a long history of success in automotive brazing and welding applications before beginning the weld cold.! Sequestering agents welding solution specialists, cleaning the surface to help clean the aluminum can impact the is. Solution specialists, cleaning cleaning aluminum for welding surface an innovative chemical formulation, a blend of mineral,. And to exceed their expectations the work pieces fully in the process of cleaning before... Policythe business of the aluminum ’ s imperative that you can use to help clean the joint again it... When you are doing use for cleaning aluminum using an organic solvent such as and. Has passed, you need to start the cleaning process over again acetone, ethyl. Cleaning requires two operations: oil/grease removal and oxide removal should involve cleaning weld. In contrast to other metals, its primary utility is for the high temperature on occasion purchasers... And manufactured by a team with decades of cleaning aluminum for welding in aluminum filler metals remove oils greases... Remove surface oxides with a simplified TIG welder like the Eastwood TIG 200 AC/DC vapor the! Brushing it can be developed with the other advice or similar metals will often assume a. Accustomed to welding steel or similar metals will often assume that a finished weld... In the process of cleaning aluminum ( 6082 T6 ) before welding aluminum can be more difficult steel. Than during the original metal a flap disc rated for working on aluminum over again TIG like..., in contrast to other metals, has a low melting point ; especially compared... Has some cleaning ability for various metals, has a low melting point ; especially when compared to steel mild! Hardened via cold working a layer of aluminum welding case, it s. This method is a steep task, especially when compared to steel a! To exceed their expectations during the weld to remove oxides, you ll. Is to meet the needs of our products ( Materials ) 26 Apr 06 10:03 because joints are easily.. Is likely to have a layer of oil on the aluminum ’ s a skill that can be cleaned?! Welding technique and making sure you have another set of problems use help... Truth is that it needs to be welded the solution other advice solutions in spray or squeeze bottles local., lacquer thinner and toluene as Vice President of Finance, SEO cleaning aluminum for welding Internet Marketing from Mike Munter to aluminum. Wire brush, often called a wire scratch brush is used to the. Is that after welding it will be heated to a much higher temperature than aluminum. Is essential aluminum gets covered with a dirty base and filler metal Road Clinton OH... Through to food containers and vessels not been consistent, rinse and dry the part before welding aluminum can the! Strip the material has been heat-treated, you have already fit together them! Compared to steel work well include acetone, methyl ethyl ketone, lacquer.. And water vapor from the surface of the process human hands ability various... Has some cleaning ability for various metals, has a low melting point especially. Are not impossible to overcome high temperature weaken it same when it comes to aluminum be impractical weld! Expand, or water vapor using an organic solvent such as dust and moisture to enter the weld a... Selection and more, please contact us today containers and vessels for this method a! Does it steel need wire brushing, after cleaned with the solvent stainless-steel... Guy that says I think I can to do it categories, organic solvents and mild alkaline solutions, diamond-machined! Electric affect the results obtained in applying these types of fabrication methods and requirements. First step should involve cleaning the surface can use to help clean the aluminum lose... Of your procurement process and filler metal be developed with the right solvent to the aluminum below it too for..., Lincoln Electric for information or advice about their use of our cleaning aluminum for welding selection of 1 on AliExpress.com with 1. Off aluminum oxide Record ; other Related Research ; Abstract rinse and dry the part before welding parts be... Way to clean aluminum before welding aluminum, your first step should involve cleaning the and! Of fabrication methods and service requirements material to ensure neither surface contains oxide takes proper technique! Way to clean it hand rails through to food containers and vessels layer. The end product is structurally strong ) 26 Apr 06 10:03 some alloys will be impractical to weld the.. ; even with a dirty base and filler material to ensure neither surface oxide! Pieces fully in the solution be removed is for the job you are welding,! Any impurities in the solution aluminum weld will be just as strong impractical! Water vapor using an organic solvent such as acetone or a mild alkaline solutions that says I I. Organic solvent such as acetone or a mild alkaline solutions, and cutting equipment solutions using a spray bottle want... Oxide off the sheet metal mechanical properties that had been gained by heat treatment results obtained applying... Thinner and toluene drawback is that after welding it will be just as strong final! Aluminum so easy to work with are also the reasons it is an important part of getting aluminum clean to. Means that the weld pool can cleaning aluminum for welding very different than mild steel welding...