{"id":1584,"date":"2015-06-26T01:11:52","date_gmt":"2015-06-26T01:11:52","guid":{"rendered":"https:\/\/permabond.com\/50-shades-glue\/"},"modified":"2026-01-07T13:23:19","modified_gmt":"2026-01-07T13:23:19","slug":"50-shades-glue","status":"publish","type":"post","link":"https:\/\/permabond.com\/fr\/50-shades-glue\/","title":{"rendered":"50 Shades of Glue"},"content":{"rendered":"

. ThisAdhesive Color Explanation by Adhesive Type<\/h2>\n

Anaerobic Adhesive Colors<\/h3>\n

Maintenance Engineers often leave a trail of oil and grease around the job site or workshop. This can become an issue if they are working with different strength threadlocking adhesives \u2013 once the label on the package is soiled, it can be difficult to see the grade reference or part number on the bottle. However, most adhesive manufacturers operate a color-coding system for anaerobic<\/a> threadlockers, which is recognized throughout the industry:<\/p>\n

PURPLE<\/span> \u2013 Low strength, easy to disassemble
\nBLUE<\/span> \u2013 Medium strength, disassembled with hand tools
\nGREEN<\/span>-Retaining and Penetrating viscosity, High strength, Heat and hand tools are often required for disassembly.
\nRED<\/span> \u2013 High strength permanent, Heat, and hand tools are often required for disassembly<\/p>\n

Generally, even if there is a lapse in concentration or a label defect, the engineer can verify that the correct product is being used for the application based on the adhesive color.\u00a0 However, there are exceptions. See more detail here.<\/a><\/p>\n

Thread sealants for Pipes<\/b><\/h3>\n

Why are they normally white?\u00a0 There are a couple of reasons<\/p>\n

a) They look nice and clean and wholesome – especially when in contact with drinking water<\/p>\n

b) They contain PTFE (like a liquid version of the tape we are all familiar with, which happens to be white) to help lubricate the joint during assembly.<\/p>\n

2-Part Epoxies<\/b><\/h3>\n

The majority of 2-component epoxies<\/a> are two different colors. Epoxy resin and hardeners have to be properly mixed in their stoichiometric ratios. Black and white seem to be most popular colors. When mixed the adhesive should come out a dark shade of grey with no streaks.\u00a0 The cross pigmentation makes it easy to see if the components are properly mixed or whether more stirring is required. It is important to use a good mixing technique. Being too vigorous could entrap too much air.<\/p>\n

Some applications require entirely white or entirely black epoxy, so it is possible to use a clear resin in combination with a colored hardener (or vice versa) to achieve the desired result. Epoxies can be color matched to applications \u2013 e.g. a dark walnut automotive dash veneer may require a color-matched epoxy to bond it, or a Caesar stone workbench may need a matching epoxy joint.<\/p>\n

Heat Cure Epoxies<\/b><\/h3>\n

Available in a wide range of colors but favored in a dark shade of grey or silvery in color. This is because these high performance products are often used in place of welding, soldering, or brazing. Despite adhesive often being stronger than welding or brazing, it is often viewed as a recipe for disaster by non-engineers that suffer flashbacks of failed mug-handle or spectacle arm bonding mishaps. For this reason, the adhesive joint has to look rugged, like it is properly welded. The added benefit of using the correct adhesive instead of welding is better stress distribution, no damage to the substrate material, plus a 100% seal.<\/p>\n

Cyanoacrylates<\/b><\/h3>\n

Normally these are clear and colorless. There are rubber toughened grades that are black, but apart from these, cyanoacrylates<\/a> don\u2019t hold pigments in suspension well. So these adhesives do not come in different colors.<\/p>\n

UV Curable Adhesive Color
\n<\/b><\/h3>\n

These are generally clear as they need to maximize the UV light transmittance to facilitate cure.\u00a0 Incorporating a color into the formulation could be a disaster if it absorbs UV light. This may prevent any depth cure.\u00a0 Colored UVs normally have a secondary cure mechanism (such as anaerobic) to allow curing in shadow areas that UV light can\u2019t penetrate.<\/p>\n

For further assistance or help with selecting a suitable adhesive or to discuss your adhesive color matching requirements, please contact <\/a>Permabond.<\/p>\n","protected":false},"excerpt":{"rendered":"

. ThisAdhesive Color Explanation by Adhesive Type Anaerobic Adhesive Colors Maintenance Engineers often leave a trail of oil and grease around the job site or workshop. This can become an issue if they are working with different strength threadlocking adhesives \u2013 once the label on the package is soiled, it can be difficult to see […]<\/p>\n","protected":false},"author":5,"featured_media":11855,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[609,607],"tags":[42,181,75,182,180,183],"class_list":["post-1584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adhesive-selection-articles","category-adhesive-selection-and-use","tag-adhesives","tag-bonding","tag-epoxy","tag-glue","tag-thread-sealant","tag-threadlocker"],"acf":[],"yoast_head":"\n50 Shades of Glue - Adhesive colors<\/title>\n<meta name=\"description\" content=\"Adhesive color - Why are some threadlockers blue and some red, why are thread sealants white, and why are two part epoxies different colors?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/permabond.com\/fr\/50-shades-glue\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"50 Shades of Glue\" \/>\n<meta property=\"og:description\" content=\"Adhesive color - Why are some threadlockers blue and some red, why are thread sealants white, and why are two part epoxies different colors?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/permabond.com\/fr\/50-shades-glue\/\" \/>\n<meta property=\"og:site_name\" content=\"Permabond\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/permabondEA\/\" \/>\n<meta property=\"article:published_time\" content=\"2015-06-26T01:11:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-07T13:23:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/permabond.com\/wp-content\/uploads\/2022\/11\/Permabond-Default-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"450\" \/>\n\t<meta property=\"og:image:height\" content=\"250\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Laurie Gibbons\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:site\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Laurie Gibbons\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"50 Shades of Glue - 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