--- title: Blog | Brazing & Soldering Manufacturer | Lucas-Milhaupt | Aluminum description: Aluminum | Lucas-Milhaupt has offered brazing and soldering excellence for over 65 years. We are a global provider and producer of metal joining products and services for thousands of companies worldwide. Our blog provides you with valuable brazing solutions, tips, and information that can be applied to your own applications and projects. --- [![Lucas_Milhaupt_logo_digital](https://blog.lucasmilhaupt.com/hubfs/Lucas_Milhaupt_logo_digital.jpg)](https://www.lucasmilhaupt.com/) - [Products](https://www.lucasmilhaupt.com/Products) - [Filler Metals](https://www.lucasmilhaupt.com/Products/Filler-Metals) - [Fluxes](https://www.lucasmilhaupt.com/Products/Fluxes) - [Pastes](https://www.lucasmilhaupt.com/Products/Pastes) - [Distribution](https://www.lucasmilhaupt.com/Products/Distribution) - [Industries](https://www.lucasmilhaupt.com/Industries) - [Aerospace](https://www.lucasmilhaupt.com/Industries/Aerospace) - [Automotive](https://www.lucasmilhaupt.com/Industries/Automotive) - [Electrical](https://www.lucasmilhaupt.com/Industries/Electrical) - [HVAC/R](https://www.lucasmilhaupt.com/Industries/HVACR) - [Medical](https://www.lucasmilhaupt.com/Industries/Medical) - [Microelectronics](https://www.lucasmilhaupt.com/Industries/Microelectronics) - [Oil and Gas](https://www.lucasmilhaupt.com/Industries/Oil-and-Gas) - [Services](https://www.lucasmilhaupt.com/Services) - [Capabilities](https://www.lucasmilhaupt.com/Services/Capabilities) - [Consulting Services](https://www.lucasmilhaupt.com/Services/Consulting-Services) - [Brazing Audits](https://www.lucasmilhaupt.com/Services/Brazing-Audit) - [Tech Support Request Form](https://www.lucasmilhaupt.com/Services/Tech-Support-Request-Form) - [Resources](https://www.lucasmilhaupt.com/Resources) - [FAQ](https://www.lucasmilhaupt.com/Resources-Library/FAQ) - [Literature](https://www.lucasmilhaupt.com/Resources-Library/Literature) - [Demo Videos](https://www.lucasmilhaupt.com/Resources-Library/Demo-Videos) - [Technical and Safety Data Sheets](https://www.lucasmilhaupt.com/Resources-Library/Technical-and-Safety-Data-Sheets) - [Brazing Academy](https://www.lucasmilhaupt.com/Brazing-Academy) - [Brazing Fundamentals](https://www.lucasmilhaupt.com/Brazing-Academy/Brazing-Fundamentals) - [Braze School and Training](https://www.lucasmilhaupt.com/Brazing-Academy/Braze-School-and-Training) - [How to Braze Aluminum](https://www.lucasmilhaupt.com/Brazing-Academy/How-to-Braze-Aluminum) - [Principles of Joint Design](https://www.lucasmilhaupt.com/Brazing-Academy/Principles-of-Joint-Design) - [Why Brazing?](https://www.lucasmilhaupt.com/Brazing-Academy/Why-Brazing) - [Metal Joining: Brazing vs. Soldering](https://www.lucasmilhaupt.com/Brazing-Academy/Metal-Joining-Brazing-vs.-Soldering) - [Metal Joining: Brazing vs. Welding](https://www.lucasmilhaupt.com/Brazing-Academy/Metal-Joining-Brazing-vs.-Welding) - [About](https://www.lucasmilhaupt.com/About) - [Center of Excellence](https://www.lucasmilhaupt.com/About/Center-of-Exellence) - [Certification](https://www.lucasmilhaupt.com/About/Certification) - [Find Locations](https://www.lucasmilhaupt.com/About/Find-Locations) - [Find a Distributor](https://www.lucasmilhaupt.com/About/Find-a-Distributor) - [News & Events](https://www.lucasmilhaupt.com/About/NewsEvents) - [History](https://www.lucasmilhaupt.com/About/History) - [SIL-FOS](https://www.lucasmilhaupt.com/About/SIL-FOS) - [Social Responsibility](https://www.lucasmilhaupt.com/About/Social-Responsibility) - [Careers](https://www.lucasmilhaupt.com/About/Careers) - [Culture](https://www.lucasmilhaupt.com/About/Culture) - [Contact](https://www.lucasmilhaupt.com/About/Contact) # Blog ## [How To Repair an Aluminum Coil with Lucas Milhaupt AL822](https://blog.lucasmilhaupt.com/en-us/about/blog/how-to-repair-an-aluminum-coil-with-lucas-milhaupt-al822) ***Posted by Bob Cristan on Jun 23, 2023*** Aluminum condensers and evaporators are now found extensively in the HVAC/R field. For installation and repairs, Lucas Milhaupt has the product to get the job done right. Our AL822 is a zinc/ aluminum rod with a flux core, so no separate fluxing step is required. It can be used to both join and ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/how-to-repair-an-aluminum-coil-with-lucas-milhaupt-al822) Topics: [HVAC/R](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum), [Brazing Tips](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-tips) ## [Brazing Components for Refrigeration](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-components-refrigeration) ***Posted by Lucas-Milhaupt Brazing Experts on Sep 24, 2015*** Brazing Components for Refrigeration Today, we address correct brazing alloys as well as proper brazing methods for refrigeration components. Our main topics are: Alloy selection Gas and torch selection Brazing method Nitrogen purge System evacuation and charge Remember, brazing in the HVAC/R ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-components-refrigeration) Topics: [HVAC/R](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r), [Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper), [Steel](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/steel), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum), [Torch](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/torch) ## [Aluminum Brazing: Corrosive or Non-Corrosive Flux](https://blog.lucasmilhaupt.com/en-us/about/blog/aluminum-brazing-flux) ***Posted by Lucas-Milhaupt Brazing Experts on Mar 24, 2015*** Aluminum brazing has become prevalent in the automotive and HVAC/R industries. Most manufacturers are using all-aluminum or mostly aluminum components, including evaporator and condenser coils, distributors, liquid and suction lines. When brazing aluminum, two families of fluxes are commercially ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/aluminum-brazing-flux) Topics: [Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper), [Nickel](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/nickel), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum), [Torch](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/torch) ## [Protecting Aluminum-Copper HVAC/R Joints](https://blog.lucasmilhaupt.com/en-us/about/blog/protecting-aluminum-copper-hvacr-joints) ***Posted by Lucas-Milhaupt Brazing Experts on May 15, 2014*** Aluminum-Copper HVAC Protection The HVAC/Refrigeration industry is converting many components from copper to aluminum. The reasons? Aluminum is less expensive by weight, is more corrosion resistant, weighs less, and maintains similar heat-transfer rates to copper. These aluminum parts are joined to ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/protecting-aluminum-copper-hvacr-joints) Topics: [HVAC/R](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r), [Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum), [Torch](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/torch), [Brazing Tips](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-tips) ## [How to Select a Sil-Fos Alloy](https://blog.lucasmilhaupt.com/en-us/about/blog/sil-fos-alloy-for-hvacr-and-plumbing) ***Posted by Lucas-Milhaupt Brazing Experts on Aug 13, 2013*** Benefits of Sil-Fos® Sil-Fos® alloys have become popular in the HVAC/R and plumbing industries because of these benefits: Ability to join copper to copper without flux, saving time Streamlined brazing operation, saving time Ability to fill a wide range of joint clearances Ease of operator use, with ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/sil-fos-alloy-for-hvacr-and-plumbing) Topics: [HVAC/R](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum) ## [Joining Aluminum to Copper Video](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-aluminum-to-copper-video) ***Posted by Lucas-Milhaupt Brazing Experts on Mar 14, 2013*** In about four minutes, this new technical video from Lucas-Milhaupt will walk you step-by-step through this brazing process. We'll address procedures and alloy options that will help you successfully braze copper and aluminum components. Watch for the definition of a perfect joint gap! We'll share ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/brazing-aluminum-to-copper-video) Topics: [Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum) ## [HVAC Joining Aluminum to Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/joining-copper-to-aluminum) ***Posted by Lucas-Milhaupt Brazing Experts on Apr 26, 2012*** Copper-to-Aluminum Joint Integrity HVAC manufacturers evaluating the use of aluminum components need to consider the best method for joining parts-such as evaporator and condenser coils-to secondary copper lines or assemblies. Several joining methods can be used, including: adhesives, mechanical ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/joining-copper-to-aluminum) Topics: [Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum) ## [HVAC Trend: From Copper to Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/copper-vs-aluminum) ***Posted by Lucas-Milhaupt Brazing Experts on Apr 2, 2012*** HVAC Trends The global HVAC/R market continues to grow, as the world population migrates to warmer regions and as a growing middle class (especially in developing countries) demands cooling comfort. In addition, legislation has forced changes within the industry: ozone-depleting refrigerants are ... [Read More](https://blog.lucasmilhaupt.com/en-us/about/blog/copper-vs-aluminum) Topics: [Copper](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper), [Aluminum](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum) [All posts](https://blog.lucasmilhaupt.com/en-us/about/blog/all) ### Subscribe to Our Blog to Stay Current on All Things Brazing! ### Recent Posts ### Posts by Tag - [Brazing Fundamentals (23)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-fundamentals) - [HVAC/R (17)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/hvac-r) - [Copper (12)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/copper) - [Flux (12)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/flux) - [Brazing Tips (11)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/brazing-tips) - [Torch (10)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/torch) - [Aluminum (8)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aluminum) - [Automotive (5)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/automotive) - [Electrical (5)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/electrical) - [Furnace (5)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/furnace) - [High Purity Vacuum Tube Grade (4)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/high-purity-vacuum-tube-grade) - [Oil & Gas (4)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/oil-gas) - [Aerospace (3)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/aerospace) - [Electronics (3)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/electronics) - [Solder (3)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/solder) - [High Silver (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/high-silver) - [Low Silver (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/low-silver) - [Stainless Steel (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/stainless-steel) - [Steel (2)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/steel) - [Carbide (1)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/carbide) - [Medical (1)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/medical) - [Nickel (1)](https://blog.lucasmilhaupt.com/en-us/about/blog/tag/nickel) See all [![Lucas Milhaupt Join with the Best Logo RGB](https://blog.lucasmilhaupt.com/hs-fs/hubfs/Lucas%20Milhaupt%20Join%20with%20the%20Best%20Logo%20RGB.png?width=276&height=93&name=Lucas%20Milhaupt%20Join%20with%20the%20Best%20Logo%20RGB.png)](https://www.lucasmilhaupt.com/) 4850 S. 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