{"id":46534,"date":"2021-03-08T16:36:01","date_gmt":"2021-03-08T16:36:01","guid":{"rendered":"https:\/\/testoil.mysites.io\/?p=46534"},"modified":"2023-05-02T18:47:15","modified_gmt":"2023-05-02T18:47:15","slug":"what-causes-sludge-in-machinery","status":"publish","type":"post","link":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/","title":{"rendered":"What causes sludge in machinery?"},"content":{"rendered":"\n<p>Sludge is to machinery what LDL cholesterol is to the human body (not good).&nbsp; Sludge is basically the formation of heavy, thick, greasy, tarry deposits that tend to collect in certain areas. It can be dark or clear, hard or gummy, minimal or pervasive. Some of the causes are:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Additive &nbsp;and\/or base oil incompatibilities<\/li><li>Electrical sparking<\/li><li>Overheating<\/li><li>Lengthy cold storage<\/li><li>Antifreeze, water, grease and\/or soap &nbsp;contamination<\/li><li>Oxidation, aeration and\/or nitration<\/li><\/ul>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The best way to remediate the problem is to determine the root cause, which can require some detective work (TestOil\u2019s experts have seen it all before and <a href=\"https:\/\/testoil.com\/services\/material-identification-analysis\/\">can help<\/a>).<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The following are a few examples of sludge samples analyzed by TestOil: Sludge samples were found in the main bearing housings of a <a href=\"https:\/\/testoil.com\/services\/turbine-oil-analysis\/\">steam turbine<\/a>. Analysis of the sludge found contamination with an incompatible polyol ester fluid, as well as lubricant degradation products.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-in-Test-Tube-1024x768.jpg\" alt=\"\" class=\"wp-image-46543\" srcset=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-in-Test-Tube-1024x768.jpg 1024w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-in-Test-Tube-300x225.jpg 300w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-in-Test-Tube-768x576.jpg 768w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-in-Test-Tube-1536x1152.jpg 1536w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-in-Test-Tube-200x150.jpg 200w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-in-Test-Tube.jpg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Sludge material was found in the reservoir of a mist system. Analysis of the material found it to be precipitated additives. This is most likely due to the mixture of <a href=\"https:\/\/testoil.com\/services\/lubricant-compatibility-analysis\/\" data-type=\"URL\" data-id=\"https:\/\/testoil.com\/services\/lubricant-compatibility-analysis\/\">incompatible fluids<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle--1024x768.jpg\" alt=\"\" class=\"wp-image-46548\" srcset=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle--1024x768.jpg 1024w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle--300x225.jpg 300w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle--768x576.jpg 768w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle--1536x1152.jpg 1536w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle--200x150.jpg 200w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle-.jpg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Sludge material clogging the suction strainer of a rotary screw ammonia compressor. Analysis of the sludge found lubricant degradation products, rust, and ammonium acetate. Lubricant degradation byproducts are often tacky and other contaminants will stick to these deposits causing them to grow.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Chunky-Sludge-1-1024x768.jpg\" alt=\"\" class=\"wp-image-46578\" srcset=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Chunky-Sludge-1-1024x768.jpg 1024w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Chunky-Sludge-1-300x225.jpg 300w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Chunky-Sludge-1-768x576.jpg 768w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Chunky-Sludge-1-1536x1152.jpg 1536w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Chunky-Sludge-1-200x150.jpg 200w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Chunky-Sludge-1.jpg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Sludge material caused sticking valves in a cylinder pump. The customer had informed the laboratory they believed the seals were leaking. The sludge material was found to contain isocyanate and dihexylphthalate, which are known process contaminants. In order for these compounds to enter the lubricant system, they had to get past the seal, confirming the customer\u2019s suspicions.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"727\" src=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Green-Sludge-in-White-Cup-1024x727.jpg\" alt=\"\" class=\"wp-image-46584\" srcset=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Green-Sludge-in-White-Cup-1024x727.jpg 1024w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Green-Sludge-in-White-Cup-300x213.jpg 300w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Green-Sludge-in-White-Cup-768x545.jpg 768w, https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Green-Sludge-in-White-Cup.jpg 1149w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The most important thing to know about sludge is that it can do real damage. TestOil\u2019s Analytical Services Manager Monika Malcolm explains, \u201cThe type of damage probably depends on what the sludge is comprised of: <a href=\"https:\/\/testoil.com\/routine-testing\/particle-counting-methods\/\" data-type=\"URL\" data-id=\"https:\/\/testoil.com\/routine-testing\/particle-counting-methods\/\">hard particles<\/a> could cause abrasive wear; lubricant degradation products could coat machine parts and cause reduced clearances; there could be reduced ability to dissipate heat; restricted oil flow\/improper lubrication, etc. Water could cause rust\/corrosion, improper lubrication, and accelerated lubricant degradation.\u201d<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Over time, some sludge could bake into an enamel-like coating; in other instances, it will just remain gummy. The good news is that sludge is avoidable. \u201cIt is not inevitable,\u201d Monika explains. \u201cIt can be prevented or reduced by controlling contamination, <a href=\"https:\/\/testoil.com\/routine-testing\/benefits-of-oil-analysis-from-testoil\/\">monitoring fluid degradation<\/a>, conditioning the fluid and changing the oil before it reaches the end of its useful life.\u201d<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For more information on working with TestOil for oil analysis and training visit <a href=\"https:\/\/testoil.com\">www.testoil.com<\/a>. Contact: 216-251-2510; <a href=\"mailto:sales@testoil.com\">sales@testoil.com<\/a>.<\/p>\n\n\n\n<p><strong>About TestOil<\/strong><\/p>\n\n\n\n<p>With more than 30 years of experience in the oil analysis industry, TestOil focuses exclusively on assisting industrial facilities with reducing maintenance costs and avoiding unexpected downtime through oil analysis program implementation. As industry experts in diagnosing oil-related issues in equipment such as turbines, hydraulics, gearboxes, pumps, compressors and diesel generators, TestOil provides customers with a guarantee of same-day turnaround on all routine testing. With in-house, certified training professionals, TestOil offers lubrication and oil analysis training, private onsite training, certification training and exams, and educational webinars. For more information on partnering with TestOil on oil analysis programs or training opportunities visit <a href=\"https:\/\/testoil.com\">www.testoil.com<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"Sludge is to machinery what LDL cholesterol is to the human body (not good).&nbsp; Sludge is basically the formation of heavy, thick, greasy, tarry deposits that tend to collect in certain areas. It can be dark or clear, hard or gummy, minimal or pervasive. Some of the causes are: Additive &nbsp;and\/or base oil incompatibilities Electrical sparking Overheating Lengthy cold storage&nbsp;<a href=\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/\" class=\"read-more\">Continue Reading<\/a>","protected":false},"author":4012,"featured_media":46548,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[401,402,404],"tags":[3855,3856],"class_list":["post-46534","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-routine-testing","category-advanced-testing","category-did-you-know","tag-what-causes-sludge","tag-what-causes-sludge-in-machinery","cat-401-id","cat-402-id","cat-404-id"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.0 (Yoast SEO v24.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What causes sludge in machinery? - TestOil<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What causes sludge in machinery?\" \/>\n<meta property=\"og:description\" content=\"Sludge is to machinery what LDL cholesterol is to the human body (not good).&nbsp; Sludge is basically the formation of heavy, thick, greasy, tarry deposits that tend to collect in certain areas. It can be dark or clear, hard or gummy, minimal or pervasive. Some of the causes are: Additive &nbsp;and\/or base oil incompatibilities Electrical sparking Overheating Lengthy cold storage&nbsp;Continue Reading\" \/>\n<meta property=\"og:url\" content=\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/\" \/>\n<meta property=\"og:site_name\" content=\"TestOil\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/TESTOILanalysis\" \/>\n<meta property=\"article:published_time\" content=\"2021-03-08T16:36:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-05-02T18:47:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle-.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"1200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Mary Messuti\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@TESTOILAnalysis\" \/>\n<meta name=\"twitter:site\" content=\"@TESTOILAnalysis\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mary Messuti\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/\"},\"author\":{\"name\":\"Mary Messuti\",\"@id\":\"https:\/\/testoil.com\/#\/schema\/person\/634f56adbdecfee75bde9ce908569a0d\"},\"headline\":\"What causes sludge in machinery?\",\"datePublished\":\"2021-03-08T16:36:01+00:00\",\"dateModified\":\"2023-05-02T18:47:15+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/\"},\"wordCount\":611,\"publisher\":{\"@id\":\"https:\/\/testoil.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle-.jpg\",\"keywords\":[\"What Causes Sludge?\",\"What Causes Sludge in Machinery?\"],\"articleSection\":[\"Routine Testing\",\"Advanced Testing\",\"Did You Know?\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/\",\"url\":\"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/\",\"name\":\"What causes sludge in machinery? 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- TestOil","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/","og_locale":"en_US","og_type":"article","og_title":"What causes sludge in machinery?","og_description":"Sludge is to machinery what LDL cholesterol is to the human body (not good).&nbsp; Sludge is basically the formation of heavy, thick, greasy, tarry deposits that tend to collect in certain areas. It can be dark or clear, hard or gummy, minimal or pervasive. Some of the causes are: Additive &nbsp;and\/or base oil incompatibilities Electrical sparking Overheating Lengthy cold storage&nbsp;Continue Reading","og_url":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/","og_site_name":"TestOil","article_publisher":"https:\/\/www.facebook.com\/TESTOILanalysis","article_published_time":"2021-03-08T16:36:01+00:00","article_modified_time":"2023-05-02T18:47:15+00:00","og_image":[{"width":1600,"height":1200,"url":"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle-.jpg","type":"image\/jpeg"}],"author":"Mary Messuti","twitter_card":"summary_large_image","twitter_creator":"@TESTOILAnalysis","twitter_site":"@TESTOILAnalysis","twitter_misc":{"Written by":"Mary Messuti","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/#article","isPartOf":{"@id":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/"},"author":{"name":"Mary Messuti","@id":"https:\/\/testoil.com\/#\/schema\/person\/634f56adbdecfee75bde9ce908569a0d"},"headline":"What causes sludge in machinery?","datePublished":"2021-03-08T16:36:01+00:00","dateModified":"2023-05-02T18:47:15+00:00","mainEntityOfPage":{"@id":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/"},"wordCount":611,"publisher":{"@id":"https:\/\/testoil.com\/#organization"},"image":{"@id":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/#primaryimage"},"thumbnailUrl":"https:\/\/testoil.com\/wp-content\/uploads\/2021\/03\/Sludge-on-Yellow-Semicircle-.jpg","keywords":["What Causes Sludge?","What Causes Sludge in Machinery?"],"articleSection":["Routine Testing","Advanced Testing","Did You Know?"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/","url":"https:\/\/testoil.com\/routine-testing\/what-causes-sludge-in-machinery\/","name":"What causes sludge in machinery? 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