{"id":11620,"date":"2023-09-05T10:26:48","date_gmt":"2023-09-05T10:26:48","guid":{"rendered":"https:\/\/xometry.pro\/articles\/anodizing-aluminium\/"},"modified":"2025-09-29T16:50:45","modified_gmt":"2025-09-29T14:50:45","slug":"anodizing-aluminium","status":"publish","type":"articles","link":"https:\/\/xometry.pro\/en-tr\/articles\/anodizing-aluminium\/","title":{"rendered":"Anodizing Aluminum: An Effective Finishing for Corrosion Resistance"},"content":{"rendered":"<div role=\"navigation\" aria-label=\"Table of Contents\" class=\"simpletoc wp-block-simpletoc-toc\"><h2 class=\"simpletoc-title\">Table of Contents<\/h2>\n<ul class=\"simpletoc-list\">\n<li><a href=\"#h-how-does-aluminum-anodizing-work\">How Does Aluminum Anodizing Work?<\/a>\n\n<\/li>\n<li><a href=\"#what-are-the-different-types-of-anodizing\">What Are the Different Types of Anodizing?<\/a>\n\n\n<\/li>\n\n<\/li>\n\n<li><a href=\"#h-type-ii-vs-type-iii-anodizing\">Type II vs. Type III Anodizing<\/a>\n\n<\/li>\n<li><a href=\"#h-materials-used-for-anodizing\">Materials Used for Anodizing<\/a>\n\n<\/li>\n<li><a href=\"#h-benefits-of-anodizing-aluminium\">Benefits of Anodizing Aluminium<\/a>\n\n<\/li>\n<li><a href=\"#h-anodizing-aluminium-in-different-colours\">Anodizing Aluminium in Different Colours<\/a>\n\n\n<\/li>\n\n<\/li>\n\n<li><a href=\"#h-get-anodized-aluminium-parts-with-xometry\">Get Anodized Aluminium Parts with Xometry<\/a>\n<\/li><\/ul><\/div>\n\n\n<p>Anodizing is a post-processing operation used for finishing. It is a conversion coating method that converts the surface of aluminium, and other compatible metals, to their oxides. This electrochemical process increases the thickness of the oxide layer that occurs naturally on the surface of metallic parts.&nbsp;<\/p>\n\n\n\n<p>Unlike painting which adds a superficial layer to the material, the anodizing process fully integrates the oxide layer with the underlying material, thus preventing it from peeling. This layer is a highly ordered and quite porous structure that allows other subsequent processes like colouring and sealing. The ideal material for anodizing is aluminium. However, other metals such as magnesium and titanium can be anodized.<\/p>\n\n\n\n<p>Anodizing is commonly carried out as a finishing process on parts made from <a href=\"https:\/\/xometry.com.tr\/en\/cnc-machining\/\" target=\"_blank\" rel=\"noreferrer noopener\">CNC machining<\/a> and <a href=\"https:\/\/xometry.com.tr\/en\/sheet-metal-fabrication\/\">sheet metal fabrication<\/a>. It is a simple yet effective process that enhances the durability, wear resistance, hardness, and corrosion resistance of a part. It also improves aesthetics as it creates a shiny surface finish, with the option of colour, on parts.<\/p>\n\n\n<div id=\"LBLV1CPBRRk-69d7ff55f1fcd\" data-video-id=\"LBLV1CPBRRk\" class=\"ma-gdpr-youtube-wrapper\" style=\"width:100%;height:56.25%;padding-top:56.25%;\" data-new-window=\"\" data-yt-parameters=\"WyJtYXgtd2lkdGg9XHUyMDFjNjAwcHhcIiJd\"><picture class=\"ma-gdpr-youtube-thumbnail\"><source media=\"(min-width:640px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/LBLV1CPBRRk\/LBLV1CPBRRk_hq720.webp\"><source media=\"(min-width:640px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/LBLV1CPBRRk\/LBLV1CPBRRk_hq720.jpg\"><source media=\"(min-width:320px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/LBLV1CPBRRk\/LBLV1CPBRRk_sddefault.webp\"><source media=\"(min-width:320px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/LBLV1CPBRRk\/LBLV1CPBRRk_sddefault.jpg\"><source media=\"(min-width:240px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/LBLV1CPBRRk\/LBLV1CPBRRk_hqdefault.webp\"><source media=\"(min-width:240px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/LBLV1CPBRRk\/LBLV1CPBRRk_hqdefault.jpg\"><img decoding=\"async\" src=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/LBLV1CPBRRk\/LBLV1CPBRRk_mqdefault.jpg\" alt=\"\" title=\"\"><\/picture><svg class=\"ma-gdpr-youtube-button\"><use xlink:href=\"#ma-gdpr-youtube-play-button\"><\/use><\/svg><div class=\"ma-gdpr-youtube-notice\" style=\"font-size:.7em;\"><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-does-aluminum-anodizing-work\"><strong>How Does Aluminum Anodizing Work?<\/strong><\/h2>\n\n\n<p>Anodizing is carried out using the <a href=\"https:\/\/chem.libretexts.org\/Bookshelves\/Analytical_Chemistry\/Supplemental_Modules_(Analytical_Chemistry)\/Electrochemistry\/Electrolytic_Cells\" target=\"_blank\" rel=\"noreferrer noopener\">electrolytic cell<\/a> electrochemical process. The aluminium to be anodized is thoroughly cleaned to remove impurities and immersed in an acid electrolyte bath. The cathode is mounted inside the anodizing tank. The immersed aluminium becomes the aluminium anode.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>As direct electric current is passed between the anode and the cathode, oxygen ions released from the electrolytic bath migrate towards the aluminum and combine with atoms of the aluminum to form aluminum oxide. As a result, an anodic layer creating an oxide barrier is formed on the surface of the part.<\/p>\n\n\n\n<p>This process changes the microscopic texture of the metal surface and the crystalline structure of the parent metal near the surface. Titanium racks and lead cathodes are the most ubiquitous cathodes for anodizing aluminium.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><div class=\"wp-block-image__wrap\"><img loading=\"lazy\" decoding=\"async\" width=\"648\" height=\"654\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell.png\" alt=\"A simple electrolytic cell\" class=\"wp-image-1706\" style=\"max-width:323px;max-height:326px\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell.png 648w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell-297x300.png 297w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell-150x150.png 150w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell-84x84.png 84w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell-102x102.png 102w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell.png\" data-fancybox=\"gallery-11620\" data-caption=\"A simple electrolytic cell\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/A-simple-electrolytic-cell.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">A simple electrolytic cell<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-are-the-different-types-of-anodizing\"><strong>What Are the Different Types of Anodizing?<\/strong><\/h2>\n\n\n<p>There are three types of anodizing that differ by electrolytic fluid:<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-type-i-anodizing-chromic-acid-anodizing\"><strong>Type I Anodizing: Chromic Acid Anodizing<\/strong><\/h3>\n\n\n<p>In Type I, the electrolyte is chromic acid-based. Anodizing with chromic acid forms a thin coating (the thickness depends on the process) and provides the least colour absorption during dyeing. This type is not commonly used as it offers not-so-great wear resistance and low porosity.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-type-ii-anodizing-nbsp-sulfuric-acid-anodizing-nbsp\"><strong>Type II Anodizing:  Sulfuric Acid Anodizing <\/strong><\/h3>\n\n\n<p>Type II anodizing uses a dilute sulfuric acid to create a thicker oxide layer of approximately 8 to 13 \u00b5m and has better colour absorption. It has good corrosion resistance and wear resistance.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-type-iii-anodizing-hard-anodizing\"><strong>Type III Anodizing: Hard Anodizing<\/strong><\/h3>\n\n\n<p>Type III is carried out using sulfuric acid, albeit at much lower temperatures. Hard anodizing gives thicknesses in the range of 40 to 60 \u00b5m, the highest of the three types. Hard anodized aluminium parts are corrosion-resistant with excellent resistance to wear, and their layers have the highest porosity.&nbsp;<\/p>\n\n\n\n<p>A different kind of anodizing commonly referred to as architectural anodizing makes use of metallic ions.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class=\"wp-block-image__wrap\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-part-with-a-black-hardcoat-anodising-finish-1024x683.jpg\" alt=\"CNC machined part with a black hardcoat anodising finish\" class=\"wp-image-1707\" style=\"max-width:547px;max-height:365px\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-part-with-a-black-hardcoat-anodising-finish-1024x683.jpg 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-part-with-a-black-hardcoat-anodising-finish-300x200.jpg 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-part-with-a-black-hardcoat-anodising-finish-768x512.jpg 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-part-with-a-black-hardcoat-anodising-finish.jpg 1440w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-part-with-a-black-hardcoat-anodising-finish.jpg\" data-fancybox=\"gallery-11620\" data-caption=\"CNC machined part with a black hardcoat anodizing finish\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-part-with-a-black-hardcoat-anodising-finish.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">CNC machined part with a black hardcoat anodizing finish<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-type-ii-vs-type-iii-anodizing\"><strong>Type II vs. Type III Anodizing<\/strong><\/h2>\n\n\n<p>The major difference between Type II and Type III anodizing is the thickness of the oxide layer. The anodized oxide layer created by Type II anodizing is much thinner than that of Type III.<\/p>\n\n\n\n<p>Type II anodized parts are great for cosmetic finishing, as they provide a smooth, attractive finish along with good resistance to corrosion and wear. However, if you need matte finished anodized aluminium parts, you need to bead blast the as-machined part before anodizing. Type II is also best for implementing different permanent pigments into the anodized parts to get the desired colour finish.<\/p>\n\n\n\n<p>On the other hand, type III (hard) anodizing is suitable for parts that need to remain functional in harsh environments, such as aerospace and automotive components. Parts that need excellent scratch-resistance and greater thermal shock resistance and durability prefer Type III hard anodizing over Type II anodizing.<\/p>\n\n\n<div class=\"custom-table-block \" id=\"table-id-814\" >\r\n\t<div class=\"search-input-wrapper\">\r\n\t\t<svg width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n\t\t\t<path d=\"M15.7812 13.833L12.6659 10.7177C12.5252 10.5771 12.3346 10.499 12.1347 10.499H11.6253C12.4877 9.39596 13.0002 8.00859 13.0002 6.49937C13.0002 2.90909 10.0911 0 6.50083 0C2.91056 0 0.00146484 2.90909 0.00146484 6.49937C0.00146484 10.0896 2.91056 12.9987 6.50083 12.9987C8.01006 12.9987 9.39742 12.4863 10.5004 11.6239V12.1332C10.5004 12.3332 10.5786 12.5238 10.7192 12.6644L13.8345 15.7797C14.1282 16.0734 14.6032 16.0734 14.8938 15.7797L15.778 14.8954C16.0718 14.6017 16.0718 14.1267 15.7812 13.833ZM6.50083 10.499C4.29167 10.499 2.50122 8.71165 2.50122 6.49937C2.50122 4.29021 4.28855 2.49976 6.50083 2.49976C8.70999 2.49976 10.5004 4.28708 10.5004 6.49937C10.5004 8.70852 8.71311 10.499 6.50083 10.499Z\" fill=\"#476175\"\/>\r\n\t\t<\/svg>\r\n\t\t<input type=\"search\" class=\"table-search-input\" id=\"table-search-814\" placeholder=\"Table search\">\r\n\t<\/div>\t\r\n\t<div class=\"table-wrapper\">\r\n\t\t<table style=\"border-collapse: collapse; width: 100%; height: 120px;\">\n<tbody>\n<tr>\n<td style=\"width: 17.5258%;\"><b>Feature<\/b><\/td>\n<td style=\"width: 37.3711%;\"><b>Type II anodizing<\/b><\/td>\n<td style=\"width: 44.9742%;\"><b>Type III hard anodizing<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.5258%;\"><span style=\"font-weight: 400;\">Oxide layer<\/span><\/td>\n<td style=\"width: 37.3711%;\"><span style=\"font-weight: 400;\">Thin (8 to 13 \u00b5m)<\/span><\/td>\n<td style=\"width: 44.9742%;\"><span style=\"font-weight: 400;\">Thick and dense oxide layer (40 to 60 \u00b5m)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.5258%;\"><span style=\"font-weight: 400;\">Surface finish<\/span><\/td>\n<td style=\"width: 37.3711%;\"><span style=\"font-weight: 400;\">Smooth finish<\/span><\/td>\n<td style=\"width: 44.9742%;\"><span style=\"font-weight: 400;\">Matte<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.5258%;\"><span style=\"font-weight: 400;\">Part\u2019s properties<\/span><\/td>\n<td style=\"width: 37.3711%;\"><span style=\"font-weight: 400;\">Good corrosion and wear resistance<\/span><\/td>\n<td style=\"width: 44.9742%;\"><span style=\"font-weight: 400;\">Excellent scratch resistance, highly durable<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.5258%;\"><span style=\"font-weight: 400;\">Appearance<\/span><\/td>\n<td style=\"width: 37.3711%;\"><span style=\"font-weight: 400;\">Slightly yellowish<\/span><\/td>\n<td style=\"width: 44.9742%;\"><span style=\"font-weight: 400;\">Brownish<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.5258%;\"><span style=\"font-weight: 400;\">Cost<\/span><\/td>\n<td style=\"width: 37.3711%;\"><span style=\"font-weight: 400;\">More cost-effective<\/span><\/td>\n<td style=\"width: 44.9742%;\"><span style=\"font-weight: 400;\">Higher cost due to thicker oxide layer<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t<\/div>\r\n<\/div>\r\n<style>\r\n\t.custom-table-block table{\r\n\t\theight: initial!important;\r\n\t}\r\n\t.search-input-wrapper{\r\n\t\tposition: relative;\r\n\t\tmargin-bottom: 24px;\r\n\t}\r\n\t.search-input-wrapper svg{\r\n\t\tposition: absolute;\r\n\t\ttop:50%;\r\n\t\tleft:12px;\r\n\t\ttransform: translateY(-50%);\r\n\t}\r\n\t.table-search-input{\r\n\t\tpadding: 0 0 0 40px;\r\n\t\tborder:1px solid #C1CAD1;\r\n\t\theight: 44px;\r\n\t\twidth: 201px;\r\n\t\tcolor:#092C47;\r\n\t\tfont-family: Open Sans;\r\n\t\tfont-size: 16px;\r\n\t\tfont-weight: 400;\r\n\t\tline-height: 24px;\r\n\t\tletter-spacing: 0em;\r\n\t\ttext-align: left;\r\n\t}\r\n\t.table-search-input::placeholder{\r\n\t\tcolor:#092C47;\r\n\t}\r\n\t\r\n\t.custom-table-block thead 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inline-block;\r\n\t\tbackground-image: url(\"data:image\/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http:\/\/www.w3.org\/2000\/svg'%3E%3Cpath d='M10.585 0.585938L6 5.17094L1.415 0.585938L0 2.00094L6 8.00094L12 2.00094L10.585 0.585938Z' fill='%23476175'\/%3E%3C\/svg%3E%0A\");\r\n\t\tmargin-left: 8px;\r\n\t\tbackground-position: center center;\r\n\t\tbackground-size: 12px 7.5px;\r\n\t\tbackground-repeat: no-repeat;\r\n\t\twidth: 24px;\r\n\t\theight: 12px;\r\n\t}\r\n\t.custom-table-block{\r\n\t\tmargin: 20px 0;\t\r\n\t}\r\n\t.custom-table-block .table-wrapper{\r\n\t\twidth: 100%;\r\n\t\toverflow-x: auto;\r\n\t}\r\n\t@media(max-width: 768px){\r\n\t\t\/* .custom-table-block tbody td{\r\n\t\t\twhite-space: nowrap;\r\n\t\t} *\/\r\n\t\t.custom-table-block .table-wrapper{\r\n\t\t\tmax-width: calc(100vw - 16px);\r\n\t\t}\r\n\t}\r\n<\/style>\r\n\n\n<div id=\"nCIsL5E7Q60-69d7ff55f35b9\" data-video-id=\"nCIsL5E7Q60\" class=\"ma-gdpr-youtube-wrapper\" style=\"width:100%;height:56.25%;padding-top:56.25%;\" data-new-window=\"\" data-yt-parameters=\"\"><picture class=\"ma-gdpr-youtube-thumbnail\"><source media=\"(min-width:640px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/nCIsL5E7Q60\/nCIsL5E7Q60_hq720.webp\"><source media=\"(min-width:640px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/nCIsL5E7Q60\/nCIsL5E7Q60_hq720.jpg\"><source media=\"(min-width:320px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/nCIsL5E7Q60\/nCIsL5E7Q60_sddefault.webp\"><source media=\"(min-width:320px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/nCIsL5E7Q60\/nCIsL5E7Q60_sddefault.jpg\"><source media=\"(min-width:240px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/nCIsL5E7Q60\/nCIsL5E7Q60_hqdefault.webp\"><source media=\"(min-width:240px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/nCIsL5E7Q60\/nCIsL5E7Q60_hqdefault.jpg\"><img decoding=\"async\" src=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/nCIsL5E7Q60\/nCIsL5E7Q60_mqdefault.jpg\" alt=\"\" title=\"\"><\/picture><svg class=\"ma-gdpr-youtube-button\"><use xlink:href=\"#ma-gdpr-youtube-play-button\"><\/use><\/svg><div class=\"ma-gdpr-youtube-notice\" style=\"font-size:.7em;\"><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-materials-used-for-anodizing\"><strong>Materials Used for Anodizing<\/strong><\/h2>\n\n\n<p>Anodizing can only be carried out on conductive materials. The most common materials are aluminum alloys. Non-ferrous metals such as magnesium and titanium can also be anodized (e.g. titanium anodizing).<\/p>\n\n\n\n<p>Other materials include zinc, niobium, zirconium, hafnium, and tantalum. Ferrous metals are anodized using nitric acid or by using red fuming nitric acid for treatment. This forms a hard black iron (II, III) oxide that maintains conformity.&nbsp;<\/p>\n\n\n\n<p>Steel and other ferrous metals cannot be anodized as they will corrode when subjected to the anodizing process.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class=\"wp-block-image__wrap\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-colour-1024x683.jpg\" alt=\"Anodised parts in colour\" class=\"wp-image-1708\" style=\"max-width:838px;max-height:558px\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-colour-1024x683.jpg 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-colour-300x200.jpg 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-colour-768x512.jpg 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-colour.jpg 1440w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-colour.jpg\" data-fancybox=\"gallery-11620\" data-caption=\"Anodized parts in colour\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-colour.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">Anodized parts in colour<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-benefits-of-anodizing-aluminium\"><strong>Benefits of Anodizing Aluminium<\/strong><\/h2>\n\n\n<p>The following are some of the benefits derived from anodizing:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Good surface properties<\/strong>: Anodizing improves the surface properties of the material. It increases the part\u2019s corrosion resistance as well as&nbsp; scratch and wear resistant<\/li>\n\n\n\n<li><strong>Better protection<\/strong>: Anodizing aluminium offers better protection than painting as the protective layer is one with the part and can neither peel nor chip<\/li>\n\n\n\n<li><strong>Better surface absorption for coatings<\/strong>: The layer created has improved absorption, so paint primers and glue adherence on anodized metals are much better and improved than bare metals<\/li>\n\n\n\n<li><strong>Galling prevention<\/strong>: Anodizing prevents galling (wear caused by adhesion of sliding surface) of threaded components such as bolts and nuts<\/li>\n\n\n\n<li><strong>Shiny surface finish<\/strong>: Anodizing gives surfaces a shiny aesthetic finish. Also, it provides the option to apply a variety of colours to parts<\/li>\n\n\n\n<li><strong>Good insulation properties<\/strong>: It improves insulation properties as it produces parts with lower electrical conductivity compared to bare metal.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-anodizing-aluminium-in-different-colours\"><strong>Anodizing Aluminium in Different Colours<\/strong><\/h2>\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The standard colours available for anodized parts are clear, bronze, champagne and <a href=\"https:\/\/xometry.pro\/en-tr\/articles\/black-anodizing\/\" target=\"_blank\" rel=\"noreferrer noopener\">black<\/a>. Other colours include; red, pink, gold, yellow, green, brown, black, blue, violet, olive drab and grey. But the most common colour is black followed by blue, red and gold.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-dyeing\"><strong>Dyeing<\/strong><\/h3>\n\n\n<p>An anodized aluminum part may be dyed or undyed. The part is dipped into a hot dye tank immediately and directly after the anodizing process. A variety of colours can be obtained through this process.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-blue-1024x683.png\" alt=\"Anodised parts in blue\" class=\"wp-image-1709\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-blue-1024x683.png 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-blue-300x200.png 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-blue-768x512.png 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-blue.png 1440w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-blue.png\" data-fancybox=\"gallery-11620\" data-caption=\"Anodized parts in blue\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Anodised-parts-in-blue.png\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">Anodized parts in blue<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-electrolytic-colouring-nbsp\"><strong>Electrolytic Colouring <\/strong><\/h3>\n\n\n<p>Another way of adding colours to anodized aluminium parts is by electrolytic colouring. In this process, the part is immersed in another electrolytic solution together with metallic salts. These salts form coatings that are UV resistant. However, the possible colours are limited to black or bronze.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-colour-selection\"><strong>Colour Selection<\/strong><\/h3>\n\n\n<p>Colours for anodized parts can be often selected by either colour name or RAL code. Colour names specify commonly available colours simply by their name, such as green or red. This is the most commonly available option when selecting the colour for anodizing.<\/p>\n\n\n\n<p>Large manufacturing plants can sometimes offer to anodize with the <a href=\"https:\/\/www.ralcolorchart.com\/ral-classic\">RAL colour code system<\/a> that gives very exact options for the required colour.&nbsp;<\/p>\n\n\n\n<p>The RAL system differentiates between various shades and types of a particular colour, thus providing a palette of numerous colours.&nbsp;<\/p>\n\n\n\n<p>For example, while the colour name will simply specify \u201cgrey\u201d, the RAL chart specifies \u201d anthracite grey\u201d with the code \u201cRAL 7016\u201d, along with various other types of grey.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><div class=\"wp-block-image__wrap\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-parts-anodised-in-different-colours.jpg\" alt=\"CNC machined parts anodised in different colours\" class=\"wp-image-1710\" style=\"max-width:840px;max-height:630px\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-parts-anodised-in-different-colours.jpg 1000w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-parts-anodised-in-different-colours-300x225.jpg 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-parts-anodised-in-different-colours-768x576.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-parts-anodised-in-different-colours.jpg\" data-fancybox=\"gallery-11620\" data-caption=\"CNC machined parts anodized in different colours\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/CNC-machined-parts-anodised-in-different-colours.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">CNC machined parts anodized in different colours<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-get-anodized-aluminium-parts-with-xometry\"><strong>Get Anodized Aluminium Parts with Xometry<\/strong><\/h2>\n\n\n<p>Xometry Turkey offers high quality hard and coloured anodizing for all our aluminium parts. We offer various colours, including black, blue, gold, green, red, orange, and others.<\/p>\n\n\n\n<p>To request anodized aluminium parts, simply select your preferred type and colour under the finishing column when uploading your model to our <a href=\"https:\/\/get.xometry.com.tr\/?locale=en\" target=\"_blank\" rel=\"noreferrer noopener\">Instant Quoting Engine.&nbsp;<\/a><\/p>\n\n\n\n<p>If you are uncertain about the type of anodizing that\u2019s best for your application, our experts are always standing by to assist.<\/p>\n","protected":false},"author":50,"featured_media":11622,"comment_status":"open","ping_status":"closed","template":"","categories":[],"c-tag-articles":[],"global-tag":[593],"class_list":["post-11620","articles","type-articles","status-publish","has-post-thumbnail","hentry","global-tag-post-processing-tr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.3) - 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